Chronic diarrhea differential diagnosis: Difference between revisions

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__NOTOC__
__NOTOC__
{{Chronic diarrhea}}
[[Image:Home_logo1.png|right|250px|link=https://www.wikidoc.org/index.php/Chronic_diarrhea]]
{{CMG}}; {{AE}} {{SSH}}
'''''To review the differential diagnosis of diarrhea, click [[Diarrhea#Differential Diagnosis of Diarrhea of other diseases|here]].'''''
 
{{CMG}}; {{AE}} {{SSH}}, {{SMP}}


==Overview==
==Overview==
The [[differential diagnosis]] for [[chronic diarrhea]] is enormous, with a large number of diagnostic tests available that can be used to evaluate these patients. Classifying a patient's [[chronic diarrhea]] into a subcategory such as [[Watery diarrhea|watery]], fatty and [[inflammatory]] helps to direct the [[diagnostic]] work-up. Some [[Watery diarrhea|watery]] causes of chronic diarrhea which should be differentiated from one another include [[crohn's disease]], [[hyperthyroidism]], [[VIPoma]], [[lactose intolerance]], [[celiac disease]] and [[irritable bowel syndrome]] (IBS). The causes of fatty diarrhea that should be differentiated from one another include [[celiac sprue]], [[pancreatic insufficiency]], [[bacterial overgrowth]] and [[maldigestion]] problems which results from [[Pancreatic insufficiency|pancreatic exocrine insufficiency]]. Finally, the [[inflammatory]] causes of chronic diarrhea such as [[ulcerative colitis]] and [[entamoeba histolytica]] must also be differentiated.
The [[differential diagnosis]] for [[chronic diarrhea]] is enormous, with a large number of diagnostic tests available that can be used to evaluate these patients. Classifying a patient's [[chronic diarrhea]] into a subcategory such as [[Watery diarrhea|watery]], fatty and [[inflammatory]] helps to direct the [[diagnostic]] work-up. Some [[Watery diarrhea|watery]] causes of chronic diarrhea which should be differentiated from one another include [[crohn's disease]], [[hyperthyroidism]], [[VIPoma]], [[lactose intolerance]], [[celiac disease]] and [[irritable bowel syndrome]] (IBS). The causes of fatty diarrhea that should be differentiated from one another include [[celiac sprue]], [[pancreatic insufficiency]], [[bacterial overgrowth]] and [[maldigestion]] problems which results from [[Pancreatic insufficiency|pancreatic exocrine insufficiency]]. Finally, the [[inflammatory]] causes of chronic diarrhea such as [[ulcerative colitis]] and [[entamoeba histolytica]] must also be differentiated.


==Differential Diagnosis of Chronic Diarrhea of other diseases==
==Differential Diagnosis of Chronic Diarrhea from other diseases==
'''The following table outlines the major differential diagnoses of chronic diarrhea.'''<ref name="Casburn-JonesFarthing2004">{{cite journal|last1=Casburn-Jones|first1=Anna C|last2=Farthing|first2=Michael Jg|title=Traveler's diarrhea|journal=Journal of Gastroenterology and Hepatology|volume=19|issue=6|year=2004|pages=610–618|issn=0815-9319|doi=10.1111/j.1440-1746.2003.03287.x}}</ref><ref name="KamatMathur2006">{{cite journal|last1=Kamat|first1=Deepak|last2=Mathur|first2=Ambika|title=Prevention and Management of Travelers’ Diarrhea|journal=Disease-a-Month|volume=52|issue=7|year=2006|pages=289–302|issn=00115029|doi=10.1016/j.disamonth.2006.08.003}}</ref><ref name="PfeifferDuPont2012">{{cite journal|last1=Pfeiffer|first1=Margaret L.|last2=DuPont|first2=Herbert L.|last3=Ochoa|first3=Theresa J.|title=The patient presenting with acute dysentery – A systematic review|journal=Journal of Infection|volume=64|issue=4|year=2012|pages=374–386|issn=01634453|doi=10.1016/j.jinf.2012.01.006}}</ref><ref name="pmid24506120">{{cite journal |vauthors=Barr W, Smith A |title=Acute diarrhea |journal=Am Fam Physician |volume=89 |issue=3 |pages=180–9 |year=2014 |pmid=24506120 |doi= |url=}}</ref><ref name="pmid29255768">{{cite journal |vauthors=Amil Dias J |title=Celiac Disease: What Do We Know in 2017? |journal=GE Port J Gastroenterol |volume=24 |issue=6 |pages=275–278 |year=2017 |pmid=29255768 |doi=10.1159/000479881 |url=}}</ref><ref name="pmid29254859">{{cite journal |vauthors=Kotloff KL, Riddle MS, Platts-Mills JA, Pavlinac P, Zaidi AKM |title=Shigellosis |journal=Lancet |volume= |issue= |pages= |year=2017 |pmid=29254859 |doi=10.1016/S0140-6736(17)33296-8 |url=}}</ref><ref name="Yamamoto-FurushoBosques-Padilla2017">{{cite journal|last1=Yamamoto-Furusho|first1=J.K.|last2=Bosques-Padilla|first2=F.|last3=de-Paula|first3=J.|last4=Galiano|first4=M.T.|last5=Ibañez|first5=P.|last6=Juliao|first6=F.|last7=Kotze|first7=P.G.|last8=Rocha|first8=J.L.|last9=Steinwurz|first9=F.|last10=Veitia|first10=G.|last11=Zaltman|first11=C.|title=Diagnóstico y tratamiento de la enfermedad inflamatoria intestinal: Primer Consenso Latinoamericano de la Pan American Crohn's and Colitis Organisation|journal=Revista de Gastroenterología de México|volume=82|issue=1|year=2017|pages=46–84|issn=03750906|doi=10.1016/j.rgmx.2016.07.003}}</ref><ref name="BorbélyOsterwalder2017">{{cite journal|last1=Borbély|first1=Yves M|last2=Osterwalder|first2=Alice|last3=Kröll|first3=Dino|last4=Nett|first4=Philipp C|last5=Inglin|first5=Roman A|title=Diarrhea after bariatric procedures: Diagnosis and therapy|journal=World Journal of Gastroenterology|volume=23|issue=26|year=2017|pages=4689|issn=1007-9327|doi=10.3748/wjg.v23.i26.4689}}</ref><ref name="CrawfordRamani2017">{{cite journal|last1=Crawford|first1=Sue E.|last2=Ramani|first2=Sasirekha|last3=Tate|first3=Jacqueline E.|last4=Parashar|first4=Umesh D.|last5=Svensson|first5=Lennart|last6=Hagbom|first6=Marie|last7=Franco|first7=Manuel A.|last8=Greenberg|first8=Harry B.|last9=O'Ryan|first9=Miguel|last10=Kang|first10=Gagandeep|last11=Desselberger|first11=Ulrich|last12=Estes|first12=Mary K.|title=Rotavirus infection|journal=Nature Reviews Disease Primers|volume=3|year=2017|pages=17083|issn=2056-676X|doi=10.1038/nrdp.2017.83}}</ref><ref name="pmid11068510">{{cite journal |vauthors=Kist M |title=[Chronic diarrhea: value of microbiology in diagnosis] |language=German |journal=Praxis (Bern 1994) |volume=89 |issue=39 |pages=1559–65 |year=2000 |pmid=11068510 |doi= |url=}}</ref><ref name="pmid4014291">{{cite journal |vauthors=Guerrant RL, Shields DS, Thorson SM, Schorling JB, Gröschel DH |title=Evaluation and diagnosis of acute infectious diarrhea |journal=Am. J. Med. |volume=78 |issue=6B |pages=91–8 |year=1985 |pmid=4014291 |doi= |url=}}</ref><ref name="pmid10575169">{{cite journal |vauthors=López-Vélez R, Turrientes MC, Garrón C, Montilla P, Navajas R, Fenoy S, del Aguila C |title=Microsporidiosis in travelers with diarrhea from the tropics |journal=J Travel Med |volume=6 |issue=4 |pages=223–7 |year=1999 |pmid=10575169 |doi= |url=}}</ref><ref name="WahnschaffeIgnatius2009">{{cite journal|last1=Wahnschaffe|first1=Ulrich|last2=Ignatius|first2=Ralf|last3=Loddenkemper|first3=Christoph|last4=Liesenfeld|first4=Oliver|last5=Muehlen|first5=Marion|last6=Jelinek|first6=Thomas|last7=Burchard|first7=Gerd Dieter|last8=Weinke|first8=Thomas|last9=Harms|first9=Gundel|last10=Stein|first10=Harald|last11=Zeitz|first11=Martin|last12=Ullrich|first12=Reiner|last13=Schneider|first13=Thomas|title=Diagnostic value of endoscopy for the diagnosis of giardiasis and other intestinal diseases in patients with persistent diarrhea from tropical or subtropical areas|journal=Scandinavian Journal of Gastroenterology|volume=42|issue=3|year=2009|pages=391–396|issn=0036-5521|doi=10.1080/00365520600881193}}</ref><ref name="pmid27765536">{{cite journal |vauthors=Mena Bares LM, Carmona Asenjo E, García Sánchez MV, Moreno Ortega E, Maza Muret FR, Guiote Moreno MV, Santos Bueno AM, Iglesias Flores E, Benítez Cantero JM, Vallejo Casas JA |title=75SeHCAT scan in bile acid malabsorption in chronic diarrhoea |journal=Rev Esp Med Nucl Imagen Mol |volume=36 |issue=1 |pages=37–47 |year=2017 |pmid=27765536 |doi=10.1016/j.remn.2016.08.005 |url=}}</ref><ref name="pmid19365159">{{cite journal |vauthors=Gibson RJ, Stringer AM |title=Chemotherapy-induced diarrhoea |journal=Curr Opin Support Palliat Care |volume=3 |issue=1 |pages=31–5 |year=2009 |pmid=19365159 |doi=10.1097/SPC.0b013e32832531bb |url=}}</ref><ref name="pmid23384808">{{cite journal |vauthors=Abraham BP, Sellin JH |title=Drug-induced, factitious, & idiopathic diarrhoea |journal=Best Pract Res Clin Gastroenterol |volume=26 |issue=5 |pages=633–48 |year=2012 |pmid=23384808 |doi=10.1016/j.bpg.2012.11.007 |url=}}</ref><ref name="pmid25692805">{{cite journal |vauthors=Reintam Blaser A, Deane AM, Fruhwald S |title=Diarrhoea in the critically ill |journal=Curr Opin Crit Care |volume=21 |issue=2 |pages=142–53 |year=2015 |pmid=25692805 |doi=10.1097/MCC.0000000000000188 |url=}}</ref><ref name="pmid17373914">{{cite journal |vauthors=McMahan ZH, DuPont HL |title=Review article: the history of acute infectious diarrhoea management--from poorly focused empiricism to fluid therapy and modern pharmacotherapy |journal=Aliment. Pharmacol. Ther. |volume=25 |issue=7 |pages=759–69 |year=2007 |pmid=17373914 |doi=10.1111/j.1365-2036.2007.03261.x |url=}}</ref><ref name="pmid23384801">{{cite journal |vauthors=Schiller LR |title=Definitions, pathophysiology, and evaluation of chronic diarrhoea |journal=Best Pract Res Clin Gastroenterol |volume=26 |issue=5 |pages=551–62 |year=2012 |pmid=23384801 |doi=10.1016/j.bpg.2012.11.011 |url=}}</ref><ref name="pmid3523719">{{cite journal |vauthors=Giannella RA |title=Chronic diarrhea in travelers: diagnostic and therapeutic considerations |journal=Rev. Infect. Dis. |volume=8 Suppl 2 |issue= |pages=S223–6 |year=1986 |pmid=3523719 |doi= |url=}}</ref><ref name="pmid16151544">{{cite journal| author=Silverberg MS, Satsangi J, Ahmad T, Arnott ID, Bernstein CN, Brant SR et al.| title=Toward an integrated clinical, molecular and serological classification of inflammatory bowel disease: report of a Working Party of the 2005 Montreal World Congress of Gastroenterology. | journal=Can J Gastroenterol | year= 2005 | volume= 19 Suppl A | issue=  | pages= 5A-36A | pmid=16151544 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=16151544  }}</ref><ref name="pmid12135027">{{cite journal| author=Sauter GH, Moussavian AC, Meyer G, Steitz HO, Parhofer KG, Jüngst D| title=Bowel habits and bile acid malabsorption in the months after cholecystectomy. | journal=Am J Gastroenterol | year= 2002 | volume= 97 | issue= 7 | pages= 1732-5 | pmid=12135027 | doi=10.1111/j.1572-0241.2002.05779.x | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=12135027  }}</ref><ref name="pmid1702075">{{cite journal| author=Maiuri L, Raia V, Potter J, Swallow D, Ho MW, Fiocca R et al.| title=Mosaic pattern of lactase expression by villous enterocytes in human adult-type hypolactasia. | journal=Gastroenterology | year= 1991 | volume= 100 | issue= 2 | pages= 359-69 | pmid=1702075 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=1702075  }}</ref><ref name="pmid14439871">{{cite journal| author=RUBIN CE, BRANDBORG LL, PHELPS PC, TAYLOR HC| title=Studies of celiac disease. 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'''The following table outlines the major differential diagnoses of chronic diarrhea.'''<ref name="Casburn-JonesFarthing2004">{{cite journal|last1=Casburn-Jones|first1=Anna C|last2=Farthing|first2=Michael Jg|title=Traveler's diarrhea|journal=Journal of Gastroenterology and Hepatology|volume=19|issue=6|year=2004|pages=610–618|issn=0815-9319|doi=10.1111/j.1440-1746.2003.03287.x}}</ref><ref name="KamatMathur2006">{{cite journal|last1=Kamat|first1=Deepak|last2=Mathur|first2=Ambika|title=Prevention and Management of Travelers’ Diarrhea|journal=Disease-a-Month|volume=52|issue=7|year=2006|pages=289–302|issn=00115029|doi=10.1016/j.disamonth.2006.08.003}}</ref><ref name="PfeifferDuPont2012">{{cite journal|last1=Pfeiffer|first1=Margaret L.|last2=DuPont|first2=Herbert L.|last3=Ochoa|first3=Theresa J.|title=The patient presenting with acute dysentery – A systematic review|journal=Journal of Infection|volume=64|issue=4|year=2012|pages=374–386|issn=01634453|doi=10.1016/j.jinf.2012.01.006}}</ref><ref name="pmid24506120">{{cite journal |vauthors=Barr W, Smith A |title=Acute diarrhea |journal=Am Fam Physician |volume=89 |issue=3 |pages=180–9 |year=2014 |pmid=24506120 |doi= |url=}}</ref><ref name="pmid29255768">{{cite journal |vauthors=Amil Dias J |title=Celiac Disease: What Do We Know in 2017? |journal=GE Port J Gastroenterol |volume=24 |issue=6 |pages=275–278 |year=2017 |pmid=29255768 |doi=10.1159/000479881 |url=}}</ref><ref name="pmid29254859">{{cite journal |vauthors=Kotloff KL, Riddle MS, Platts-Mills JA, Pavlinac P, Zaidi AKM |title=Shigellosis |journal=Lancet |volume= |issue= |pages= |year=2017 |pmid=29254859 |doi=10.1016/S0140-6736(17)33296-8 |url=}}</ref><ref name="Yamamoto-FurushoBosques-Padilla2017">{{cite journal|last1=Yamamoto-Furusho|first1=J.K.|last2=Bosques-Padilla|first2=F.|last3=de-Paula|first3=J.|last4=Galiano|first4=M.T.|last5=Ibañez|first5=P.|last6=Juliao|first6=F.|last7=Kotze|first7=P.G.|last8=Rocha|first8=J.L.|last9=Steinwurz|first9=F.|last10=Veitia|first10=G.|last11=Zaltman|first11=C.|title=Diagnóstico y tratamiento de la enfermedad inflamatoria intestinal: Primer Consenso Latinoamericano de la Pan American Crohn's and Colitis Organisation|journal=Revista de Gastroenterología de México|volume=82|issue=1|year=2017|pages=46–84|issn=03750906|doi=10.1016/j.rgmx.2016.07.003}}</ref><ref name="BorbélyOsterwalder2017">{{cite journal|last1=Borbély|first1=Yves M|last2=Osterwalder|first2=Alice|last3=Kröll|first3=Dino|last4=Nett|first4=Philipp C|last5=Inglin|first5=Roman A|title=Diarrhea after bariatric procedures: Diagnosis and therapy|journal=World Journal of Gastroenterology|volume=23|issue=26|year=2017|pages=4689|issn=1007-9327|doi=10.3748/wjg.v23.i26.4689}}</ref><ref name="CrawfordRamani2017">{{cite journal|last1=Crawford|first1=Sue E.|last2=Ramani|first2=Sasirekha|last3=Tate|first3=Jacqueline E.|last4=Parashar|first4=Umesh D.|last5=Svensson|first5=Lennart|last6=Hagbom|first6=Marie|last7=Franco|first7=Manuel A.|last8=Greenberg|first8=Harry B.|last9=O'Ryan|first9=Miguel|last10=Kang|first10=Gagandeep|last11=Desselberger|first11=Ulrich|last12=Estes|first12=Mary K.|title=Rotavirus infection|journal=Nature Reviews Disease Primers|volume=3|year=2017|pages=17083|issn=2056-676X|doi=10.1038/nrdp.2017.83}}</ref><ref name="pmid11068510">{{cite journal |vauthors=Kist M |title=[Chronic diarrhea: value of microbiology in diagnosis] |language=German |journal=Praxis (Bern 1994) |volume=89 |issue=39 |pages=1559–65 |year=2000 |pmid=11068510 |doi= |url=}}</ref><ref name="pmid4014291">{{cite journal |vauthors=Guerrant RL, Shields DS, Thorson SM, Schorling JB, Gröschel DH |title=Evaluation and diagnosis of acute infectious diarrhea |journal=Am. J. Med. |volume=78 |issue=6B |pages=91–8 |year=1985 |pmid=4014291 |doi= |url=}}</ref><ref name="pmid10575169">{{cite journal |vauthors=López-Vélez R, Turrientes MC, Garrón C, Montilla P, Navajas R, Fenoy S, del Aguila C |title=Microsporidiosis in travelers with diarrhea from the tropics |journal=J Travel Med |volume=6 |issue=4 |pages=223–7 |year=1999 |pmid=10575169 |doi= |url=}}</ref><ref name="WahnschaffeIgnatius2009">{{cite journal|last1=Wahnschaffe|first1=Ulrich|last2=Ignatius|first2=Ralf|last3=Loddenkemper|first3=Christoph|last4=Liesenfeld|first4=Oliver|last5=Muehlen|first5=Marion|last6=Jelinek|first6=Thomas|last7=Burchard|first7=Gerd Dieter|last8=Weinke|first8=Thomas|last9=Harms|first9=Gundel|last10=Stein|first10=Harald|last11=Zeitz|first11=Martin|last12=Ullrich|first12=Reiner|last13=Schneider|first13=Thomas|title=Diagnostic value of endoscopy for the diagnosis of giardiasis and other intestinal diseases in patients with persistent diarrhea from tropical or subtropical areas|journal=Scandinavian Journal of Gastroenterology|volume=42|issue=3|year=2009|pages=391–396|issn=0036-5521|doi=10.1080/00365520600881193}}</ref><ref name="pmid27765536">{{cite journal |vauthors=Mena Bares LM, Carmona Asenjo E, García Sánchez MV, Moreno Ortega E, Maza Muret FR, Guiote Moreno MV, Santos Bueno AM, Iglesias Flores E, Benítez Cantero JM, Vallejo Casas JA |title=75SeHCAT scan in bile acid malabsorption in chronic diarrhoea |journal=Rev Esp Med Nucl Imagen Mol |volume=36 |issue=1 |pages=37–47 |year=2017 |pmid=27765536 |doi=10.1016/j.remn.2016.08.005 |url=}}</ref><ref name="pmid19365159">{{cite journal |vauthors=Gibson RJ, Stringer AM |title=Chemotherapy-induced diarrhoea |journal=Curr Opin Support Palliat Care |volume=3 |issue=1 |pages=31–5 |year=2009 |pmid=19365159 |doi=10.1097/SPC.0b013e32832531bb |url=}}</ref><ref name="pmid23384808">{{cite journal |vauthors=Abraham BP, Sellin JH |title=Drug-induced, factitious, & idiopathic diarrhoea |journal=Best Pract Res Clin Gastroenterol |volume=26 |issue=5 |pages=633–48 |year=2012 |pmid=23384808 |doi=10.1016/j.bpg.2012.11.007 |url=}}</ref><ref name="pmid25692805">{{cite journal |vauthors=Reintam Blaser A, Deane AM, Fruhwald S |title=Diarrhoea in the critically ill |journal=Curr Opin Crit Care |volume=21 |issue=2 |pages=142–53 |year=2015 |pmid=25692805 |doi=10.1097/MCC.0000000000000188 |url=}}</ref><ref name="pmid17373914">{{cite journal |vauthors=McMahan ZH, DuPont HL |title=Review article: the history of acute infectious diarrhoea management--from poorly focused empiricism to fluid therapy and modern pharmacotherapy |journal=Aliment. Pharmacol. Ther. |volume=25 |issue=7 |pages=759–69 |year=2007 |pmid=17373914 |doi=10.1111/j.1365-2036.2007.03261.x |url=}}</ref><ref name="pmid23384801">{{cite journal |vauthors=Schiller LR |title=Definitions, pathophysiology, and evaluation of chronic diarrhoea |journal=Best Pract Res Clin Gastroenterol |volume=26 |issue=5 |pages=551–62 |year=2012 |pmid=23384801 |doi=10.1016/j.bpg.2012.11.011 |url=}}</ref><ref name="pmid3523719">{{cite journal |vauthors=Giannella RA |title=Chronic diarrhea in travelers: diagnostic and therapeutic considerations |journal=Rev. Infect. Dis. |volume=8 Suppl 2 |issue= |pages=S223–6 |year=1986 |pmid=3523719 |doi= |url=}}</ref><ref name="pmid16151544">{{cite journal| author=Silverberg MS, Satsangi J, Ahmad T, Arnott ID, Bernstein CN, Brant SR et al.| title=Toward an integrated clinical, molecular and serological classification of inflammatory bowel disease: report of a Working Party of the 2005 Montreal World Congress of Gastroenterology. | journal=Can J Gastroenterol | year= 2005 | volume= 19 Suppl A | issue=  | pages= 5A-36A | pmid=16151544 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=16151544  }}</ref><ref name="pmid12135027">{{cite journal| author=Sauter GH, Moussavian AC, Meyer G, Steitz HO, Parhofer KG, Jüngst D| title=Bowel habits and bile acid malabsorption in the months after cholecystectomy. | journal=Am J Gastroenterol | year= 2002 | volume= 97 | issue= 7 | pages= 1732-5 | pmid=12135027 | doi=10.1111/j.1572-0241.2002.05779.x | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=12135027  }}</ref><ref name="pmid1702075">{{cite journal| author=Maiuri L, Raia V, Potter J, Swallow D, Ho MW, Fiocca R et al.| title=Mosaic pattern of lactase expression by villous enterocytes in human adult-type hypolactasia. | journal=Gastroenterology | year= 1991 | volume= 100 | issue= 2 | pages= 359-69 | pmid=1702075 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=1702075  }}</ref><ref name="pmid14439871">{{cite journal| author=RUBIN CE, BRANDBORG LL, PHELPS PC, TAYLOR HC| title=Studies of celiac disease. I. The apparent identical and specific nature of the duodenal and proximal jejunal lesion in celiac disease and idiopathic sprue. | journal=Gastroenterology | year= 1960 | volume= 38 | issue=  | pages= 28-49 | pmid=14439871 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=14439871  }}</ref><ref name="pmid8209928">{{cite journal| author=Konvolinka CW| title=Acute diverticulitis under age forty. | journal=Am J Surg | year= 1994 | volume= 167 | issue= 6 | pages= 562-5 | pmid=8209928 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8209928  }} </ref><ref name="pmid16698746">{{cite journal| author=Satsangi J, Silverberg MS, Vermeire S, Colombel JF| title=The Montreal classification of inflammatory bowel disease: controversies, consensus, and implications. | journal=Gut | year= 2006 | volume= 55 | issue= 6 | pages= 749-53 | pmid=16698746 | doi=10.1136/gut.2005.082909 | pmc=1856208 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=16698746  }} </ref><ref name="pmid12700377">{{cite journal| author=Haque R, Huston CD, Hughes M, Houpt E, Petri WA| title=Amebiasis. | journal=N Engl J Med | year= 2003 | volume= 348 | issue= 16 | pages= 1565-73 | pmid=12700377 | doi=10.1056/NEJMra022710 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=12700377  }} </ref><ref name="pmid8694025">{{cite journal| author=Hertzler SR, Savaiano DA| title=Colonic adaptation to daily lactose feeding in lactose maldigesters reduces lactose intolerance. | journal=Am J Clin Nutr | year= 1996 | volume= 64 | issue= 2 | pages= 232-6 | pmid=8694025 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8694025  }} </ref><ref name="pmid9414969">{{cite journal| author=Briet F, Pochart P, Marteau P, Flourie B, Arrigoni E, Rambaud JC| title=Improved clinical tolerance to chronic lactose ingestion in subjects with lactose intolerance: a placebo effect? | journal=Gut | year= 1997 | volume= 41 | issue= 5 | pages= 632-5 | pmid=9414969 | doi= | pmc=1891556 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9414969  }} </ref><ref name="pmid15391722">{{cite journal| author=BLACK-SCHAFFER B| title=The tinctoral demonstration of a glycoprotein in Whipple's disease. | journal=Proc Soc Exp Biol Med | year= 1949 | volume= 72 | issue= 1 | pages= 225-7 | pmid=15391722 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15391722  }} </ref>


Line 27: Line 29:
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
!
|-
|-
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
Line 166: Line 167:
* Anti–tissue [[transglutaminase]] [[antibody]]
* Anti–tissue [[transglutaminase]] [[antibody]]
|-
|-
! colspan="2" rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
| colspan="9" style="background:#4479BA; color: #FFFFFF;" align="center" |'''Clinical manifestation'''
! colspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
! colspan="9" rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |'''Lab findings'''
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
! rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
! rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
! rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
|-
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
! colspan="8" style="background:#4479BA; color: #FFFFFF;" align="center" |Symptoms
! rowspan="4" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
|-
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
! colspan="3" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
!
|-
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
| colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |'''CBC'''
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |CBC
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
|-
|-
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
Line 307: Line 301:
* [[SeHCAT]] test
* [[SeHCAT]] test
|-
|-
! colspan="2" rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
! colspan="2" style="background:#DCDCDC;" align="center" |[[Microscopic colitis]]
| colspan="9" style="background:#4479BA; color: #FFFFFF;" align="center" |'''Clinical manifestation'''
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
! colspan="9" rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |'''Lab findings'''
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
! rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
|-
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
! colspan="8" style="background:#4479BA; color: #FFFFFF;" align="center" |Symptoms
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! rowspan="4" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
|-
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
* [[Abdominal tenderness]]
! colspan="3" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
* Fecal [[incontinence]]
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
!
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
|-
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |'''CBC'''
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Hypokalemia]]
* Elevated [[C-reactive protein|CRP]]
* Positive [[autoantibodies]] include:
**RF
**[[ANA]]
**[[Anti-mitochondrial antibody|AMA]]
**[[ANCA]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Arthritis]]
* [[Uveitis]]
* [[Idiopathic thrombocytopenic purpura]]
* Pleuro [[pericarditis]]
* [[Hypothyroidism]]
* [[Psoriasis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Mucosal]] [[immune responses]] to luminal factors in a genetically predisposed individual
* Drug–induced
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Colonoscopy]] with [[mucosal]] [[biopsy]] with [[mononuclear]] infiltrates:
** [[Collagenous colitis]] is characterized by a colonic subepithelial [[collagen]] band >10 micrometers in diameter
** [[Lymphocytic]] [[colitis]] is characterized by ≥20 intraepithelial [[lymphocytes]] (IEL) per 100 surface epithelial cells
|-
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
! colspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |CBC
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
|-
|-
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
Line 342: Line 372:
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Microscopic colitis]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Infective colitis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*Rebound [[Tenderness (medicine)|abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Abdominal tenderness]]
*Positive [[stool culture]]
* Fecal [[incontinence]]
*Positive fecal calprotectin
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
*Positive fecal [[lactoferrin]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Hypokalemia]]
*Elevated [[C-reactive protein|CRP]]
* Elevated [[C-reactive protein|CRP]]
*Elevated [[Erythrocyte sedimentation rate|ESR]]
* Positive [[autoantibodies]] include:
**RF
**[[ANA]]
**[[Anti-mitochondrial antibody|AMA]]
**[[ANCA]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Arthritis]]
*[[Arthritis]]
* [[Uveitis]]
* [[Uveitis]]
* [[Idiopathic thrombocytopenic purpura]]
* Pleuro [[pericarditis]]
* [[Hypothyroidism]]
* [[Psoriasis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Mucosal]] [[immune responses]] to luminal factors in a genetically predisposed individual
*[[Salmonella|''Salmonella'']]
* Drug–induced
*[[Shigella|''Shigella'']]
*[[Campylobacter|''Campylobacter'']]
*''[[Escherichia coli|E. coli 0157:H7]]''
*[[Clostridium difficile|''Clostridium difficile'']]
*[[Entamoeba histolytica|''Entamoeba histolytica'']]
*[[Adenoviridae|''Adenovirus'']]
*[[Cytomegalovirus|''Cytomegalovirus'']]
*[[Herpes simplex virus|''Herpes simplex virus'']]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Colonoscopy]] with [[mucosal]] [[biopsy]] with [[mononuclear]] infiltrates:
*[[Stool culture]]
** [[Collagenous colitis]] is characterized by a colonic subepithelial [[collagen]] band >10 micrometers in diameter
*[[Blood culture]]
** [[Lymphocytic]] [[colitis]] is characterized by ≥20 intraepithelial [[lymphocytes]] (IEL) per 100 surface epithelial cells
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Infective colitis]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Ischemic colitis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
Line 395: Line 424:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*Rebound [[Tenderness (medicine)|abdominal tenderness]]
*Hyperactive then absent [[Stomach rumble|bowel sounds]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
*[[Tenderness (medicine)|Abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive [[stool culture]]
*Positive fecal calprotectin
*Positive fecal [[lactoferrin]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
Line 410: Line 437:
*Elevated [[C-reactive protein|CRP]]
*Elevated [[C-reactive protein|CRP]]
*Elevated [[Erythrocyte sedimentation rate|ESR]]
*Elevated [[Erythrocyte sedimentation rate|ESR]]
*Elevated serum [[Lactic acid|lactate]]
*Elevated [[lactate dehydrogenase]] ([[Lactate dehydrogenase|LDH]]) 
*Elevated [[Creatine kinase|creatine phosphokinase]] ([[Creatine kinase|CPK]])
*Elevated [[amylase]]
*[[Hypoalbuminemia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Arthritis]]
*[[Henoch-Schönlein purpura|IgA vasculitis]]
* [[Uveitis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Salmonella|''Salmonella'']]
*[[Thrombophilia|Hypercoagulability]] 
*[[Shigella|''Shigella'']]
*Nonocclusive [[Ischemic colitis|colonic ischemia]]
*[[Campylobacter|''Campylobacter'']]
*[[Embolism|Embolic]] and [[Thrombosis|thrombotic]] arterial occlusion
*''[[Escherichia coli|E. coli 0157:H7]]''
*[[Mesenteric vein thrombosis]]
*[[Clostridium difficile|''Clostridium difficile'']]
*[[Entamoeba histolytica|''Entamoeba histolytica'']]
*[[Adenoviridae|''Adenovirus'']]
*[[Cytomegalovirus|''Cytomegalovirus'']]
*[[Herpes simplex virus|''Herpes simplex virus'']]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Stool culture]]
*Abdominal [[Computed tomography|CT scan]]
*[[Blood culture]]
|-
|-
! colspan="2" rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
! colspan="2" style="background:#DCDCDC;" align="center" |[[Lactose intolerance]]
| colspan="9" style="background:#4479BA; color: #FFFFFF;" align="center" |'''Clinical manifestation'''
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! colspan="9" rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |'''Lab findings'''
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
! rowspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
|-
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
! colspan="8" style="background:#4479BA; color: #FFFFFF;" align="center" |Symptoms
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! rowspan="4" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
|-
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
* [[Abdominal tenderness ]]
! colspan="3" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
* [[Abdominal distention]]
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
! rowspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
!
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
|-
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |'''CBC'''
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
|-
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
* Lactose tolerance test
! style="background:#4479BA; color: #FFFFFF;" align="center" |Chronic
* Genetic testing
! style="background:#4479BA; color: #FFFFFF;" align="center" |Watery
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
! style="background:#4479BA; color: #FFFFFF;" align="center" |Bloody
* [[Headache]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Fatty
* [[Vertigo]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
* [[Memory impairment]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |RBC
* [[Lethargy]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Ova/Parasite
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
! style="background:#4479BA; color: #FFFFFF;" align="center" |Osmotic gap
* Reduction of lactase enzyme activity or inability to produce persistent [[lactase]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Other
* Congenital [[lactase deficiency]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
* Secondary lactose malabsorption
! style="background:#4479BA; color: #FFFFFF;" align="center" |Hgb
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
* [[Small bowel]] [[biopsy]] 
* Lactose breath hydrogen test
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Ischemic colitis]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Irritable bowel syndrome]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
* [[Abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
* [[Abdominal distention]]
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
* Normal [[Stomach rumble|bowel sounds]]
*Hyperactive then absent [[Stomach rumble|bowel sounds]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
*[[Tenderness (medicine)|Abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Elevated [[C-reactive protein|CRP]]
*[[Anxiety]]
*Elevated [[Erythrocyte sedimentation rate|ESR]]
*[[Palpitation]]
*Elevated serum [[Lactic acid|lactate]]
*Elevated [[lactate dehydrogenase]] ([[Lactate dehydrogenase|LDH]]) 
*Elevated [[Creatine kinase|creatine phosphokinase]] ([[Creatine kinase|CPK]])
*Elevated [[amylase]]
*[[Hypoalbuminemia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Henoch-Schönlein purpura|IgA vasculitis]]
*Unknown
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
*[[Thrombophilia|Hypercoagulability]] 
* Diagnosis of exclusion
*Nonocclusive [[Ischemic colitis|colonic ischemia]]
*[[Embolism|Embolic]] and [[Thrombosis|thrombotic]] arterial occlusion
*[[Mesenteric vein thrombosis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Abdominal [[Computed tomography|CT scan]]
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Lactose intolerance]]
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
! colspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |CBC
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
|-
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
! style="background:#4479BA; color: #FFFFFF;" align="center" |Chronic
! style="background:#4479BA; color: #FFFFFF;" align="center" |Watery
! style="background:#4479BA; color: #FFFFFF;" align="center" |Bloody
! style="background:#4479BA; color: #FFFFFF;" align="center" |Fatty
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |RBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Ova/Parasite
! style="background:#4479BA; color: #FFFFFF;" align="center" |Osmotic gap
! style="background:#4479BA; color: #FFFFFF;" align="center" |Other
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Hgb
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Whipple's disease]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | ±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Hepatosplenomegaly]]
* [[Ascites]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
* Positive [[fecal fat]]
* [[Abdominal tenderness ]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
* [[Abdominal distention]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓/
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
*[[Hypoalbuminemia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
*[[Fat soluble vitamins]] deficiency
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
* [[Malabsorption]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
* [[Ocular motility disorders|Abnormal extraocular movement]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
* [[Lymphadenopathy]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Hyperpigmentation]]
* Lactose tolerance test
* [[Uveitis]]
* Genetic testing
* [[Endocarditis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Encephalitis]]
* [[Headache]]
* [[Dementia]]
* [[Vertigo]]
* [[Pleural effusion]]
* [[Memory impairment]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Lethargy]]
* [[Tropheryma whipplei|''Tropheryma whipplei'']]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* Reduction of lactase enzyme activity or inability to produce persistent [[lactase]]
* [[Small intestine]] [[biopsy]] for [[Tropheryma whipplei]] testing
* Congenital [[lactase deficiency]]
* [[PCR]] testing
* Secondary lactose malabsorption
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
* [[Small bowel]] [[biopsy]] 
* Lactose breath hydrogen test
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Irritable bowel syndrome]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Tropical sprue]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
* [[Abdominal tenderness]]
* Angular [[stomatitis]]
* [[Abdominal distention]]
* Oral mucosal lesion
* Normal [[Stomach rumble|bowel sounds]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive [[stool culture]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | ↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |Nl
* [[Fat soluble vitamins]] deficiency
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Vitamin B12 deficiency]]
*[[Anxiety]]
* [[Folate deficiency]]
*[[Palpitation]]
* [[Hypokalemia]] 
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Unknown
*[[Myalgia]]
*[[Neuropathy]]
*[[Edema]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* ''[[Escherichia coli]]''
* ''[[Klebsiella pneumoniae]]''
* ''[[Enterobacter cloacae]]''
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
* Diagnosis of exclusion
* Diagnosis of exclusion
|-
|-
!
! colspan="2" style="background:#DCDCDC;" align="center" |[[Small bowel bacterial overgrowth syndrome|Small bowel bacterial overgrowth]]
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Whipple's disease]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
Line 596: Line 629:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | ±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Hepatosplenomegaly]]
* [[Abdominal distension|Abdominal distention]]
* [[Ascites]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* Positive [[fecal fat]]
*Positive [[stool culture]]
*Positive [[fecal fat]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓/↑
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Hypoalbuminemia]]
* [[Hypoalbuminemia]]
*[[Fat soluble vitamins]] deficiency
* Abnormal [[Hydrogen Breath Test|hydrogen breath test]]
* [[Lactic acidosis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Malabsorption]]
* [[Malabsorption]]
* [[Ocular motility disorders|Abnormal extraocular movement]]
* [[Rosacea]] 
* [[Lymphadenopathy]]
* [[Hyperpigmentation]]
* [[Uveitis]]
* [[Endocarditis]]
* [[Encephalitis]]
* [[Dementia]]
* [[Pleural effusion]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Tropheryma whipplei|''Tropheryma whipplei'']]
* Excess bacteria in the [[small intestine]]
* Alterations in [[Intestine|intestinal]] [[anatomy]] or GI motility
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Small intestine]] [[biopsy]] for [[Tropheryma whipplei]] testing
* Diagnosis of exclusion
* [[PCR]] testing
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Tropical sprue]]
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
! colspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |CBC
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
|-
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
! style="background:#4479BA; color: #FFFFFF;" align="center" |Chronic
! style="background:#4479BA; color: #FFFFFF;" align="center" |Watery
! style="background:#4479BA; color: #FFFFFF;" align="center" |Bloody
! style="background:#4479BA; color: #FFFFFF;" align="center" |Fatty
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |RBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Ova/Parasite
! style="background:#4479BA; color: #FFFFFF;" align="center" |Osmotic gap
! style="background:#4479BA; color: #FFFFFF;" align="center" |Other
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Hgb
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Salmonellosis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
Line 637: Line 693:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*[[Abdominal distention]]
*Diffuse [[abdominal tenderness]]
*[[Hepatosplenomegaly]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* Angular [[stomatitis]]
* Oral mucosal lesion
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive [[stool culture]]
*Positive [[stool culture]]
*Positive serologic testing
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Hypokalemia]]
* [[Fat soluble vitamins]] deficiency
*[[Hypernatremia]]
* [[Vitamin B12 deficiency]]  
*[[Hyponatremia]]
* [[Folate deficiency]]
* [[Hypercalciuria]]
* [[Hypokalemia]] 
* [[Hypocitraturia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Myalgia]]
* [[Post-infectious arthritis|Post–infectious arthritis]]
*[[Neuropathy]]
* [[Obtundation]]
*[[Edema]]
* [[Bacteremia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
* [[Pericarditis]]
* ''[[Escherichia coli]]''
* [[Pyelonephritis]]
* ''[[Klebsiella pneumoniae]]''
*[[Brain abscess]]
* ''[[Enterobacter cloacae]]''
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
*[[Salmonella|''Salmonella'']]
* Diagnosis of exclusion
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Stool culture]]
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Small bowel bacterial overgrowth syndrome|Small bowel bacterial overgrowth]]
! rowspan="2" style="background:#DCDCDC;" align="center" |[[Escherichia coli enteritis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="background:#DCDCDC;" align="center" |[[EPEC|'''EPEC''']]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*Diffuse [[abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Abdominal distension|Abdominal distention]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive [[stool culture]]
*Positive [[stool culture]]
*Positive [[fecal fat]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Hypoalbuminemia]]
*''[[Enteropathogenic E. coli]]''
* Abnormal [[Hydrogen Breath Test|hydrogen breath test]]
* [[Lactic acidosis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Malabsorption]]
*[[Hybridization probe|DNA probe]] or [[polymerase chain reaction]] ([[Polymerase chain reaction|PCR]]) of the ''EPEC'' adherence factor
* [[Rosacea]] 
*[[Stool culture]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* Excess bacteria in the [[small intestine]]
* Alterations in [[Intestine|intestinal]] [[anatomy]] or GI motility
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* Diagnosis of exclusion
|-
|-
!
| style="background:#DCDCDC;" align="center" |[[EAEC|'''EAEC''']]
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Salmonellosis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
Line 731: Line 761:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*[[Abdominal distention]]
*Diffuse [[abdominal tenderness]]
*Diffuse [[abdominal tenderness]]
*[[Hepatosplenomegaly]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
Line 744: Line 772:
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive [[stool culture]]
*Positive [[stool culture]]
*Positive serologic testing
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Hypokalemia]]
*Chronic infection in [[Immunodeficiency|immunocompromised]] patients
*[[Hypernatremia]]
*[[Hyponatremia]]
 
* [[Hypercalciuria]]
* [[Hypocitraturia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Post-infectious arthritis|Post–infectious arthritis]]
*[[Escherichia coli enteritis|''Enteroaggregative E. coli'']]
* [[Obtundation]]
* [[Bacteremia]]
 
* [[Pericarditis]]
* [[Pyelonephritis]]
*[[Brain abscess]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Salmonella|''Salmonella'']]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Stool culture]]
*[[Stool culture]]
|-
|-
! rowspan="2" style="background:#DCDCDC;" align="center" |[[Escherichia coli enteritis]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Aeromonas]]
| style="background:#DCDCDC;" align="center" |[[EPEC|'''EPEC''']]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*Diffuse [[abdominal tenderness]]
* [[Abdominal distention]]
* Hyperactive [[Stomach rumble|bowel sounds]]
* Diffuse [[abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
Line 787: Line 803:
*Positive [[stool culture]]
*Positive [[stool culture]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*''[[Enteropathogenic E. coli]]''
*Wound [[infection]]
*[[Bacteremia]]
*[[Hemolytic-uremic syndrome|Hemolytic uremic syndrome]] 
*[[Meningitis]]
*[[Ocular]] infection
*[[Pneumonia]] 
*[[Urinary tract infection]]
*[[Osteomyelitis]]
*[[Peritonitis]]
*[[Acute cholecystitis]]
*[[Opportunistic infection|Opportunistic infections]] in [[Immunodeficiency|immunocompromised]] patients
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*''[[Aeromonas]]'' virulence factors including [[Endotoxin|endotoxins]], [[Hemolysin|hemolysins]], [[Enterotoxin|enterotoxins]], and adherence factors
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Hybridization probe|DNA probe]] or [[polymerase chain reaction]] ([[Polymerase chain reaction|PCR]]) of the ''EPEC'' adherence factor
*[[Blood culture]]
*[[Stool culture]]
*Wound [[Culture collection|culture]]
|-
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
! colspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |CBC
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
|-
|-
| style="background:#DCDCDC;" align="center" |[[EAEC|'''EAEC''']]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
! style="background:#4479BA; color: #FFFFFF;" align="center" |Chronic
! style="background:#4479BA; color: #FFFFFF;" align="center" |Watery
! style="background:#4479BA; color: #FFFFFF;" align="center" |Bloody
! style="background:#4479BA; color: #FFFFFF;" align="center" |Fatty
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |RBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Ova/Parasite
! style="background:#4479BA; color: #FFFFFF;" align="center" |Osmotic gap
! style="background:#4479BA; color: #FFFFFF;" align="center" |Other
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Hgb
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Mycobacterium avium complex]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
Line 803: Line 858:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Diffuse [[abdominal tenderness]]
*[[Abdominal distension|Abdominal distention]]
*[[Hepatosplenomegaly]] 
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive [[stool culture]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Elevated [[Liver function tests|liver enzymes]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Chronic infection in [[Immunodeficiency|immunocompromised]] patients
*[[Opportunistic infection]] in [[Immunodeficiency|immunocompromised]] patients
*[[Pulmonary]] [[infection]]
*[[Lymphadenopathy|Adenopathy]] 
*[[Sleep hyperhidrosis|Night sweats]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Escherichia coli enteritis|''Enteroaggregative E. coli'']]
*[[Mycobacterium avium complex|''Mycobacterium avium complex'']]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Stool culture]]
*[[Blood culture]]
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Aeromonas]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[CMV colitis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
* [[Abdominal distention]]
* Hyperactive [[Stomach rumble|bowel sounds]]
* Diffuse [[abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive [[stool culture]]
*Viral antigen assay
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Decreased [[CD4]] level
*Abnormal [[Liver function tests|liver function test]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Wound [[infection]]
*[[Encephalitis]] 
*[[Bacteremia]]
*[[Guillain-Barré syndrome|Guillain–Barré syndrome]]
*[[Hemolytic-uremic syndrome|Hemolytic uremic syndrome]] 
*[[Meningitis]]
*[[Ocular]] infection
*[[Pneumonia]] 
*[[Pneumonia]] 
*[[Urinary tract infection]]
*[[Retinitis]]
*[[Osteomyelitis]]
*[[Pericarditis]] and [[myocarditis]]
*[[Peritonitis]]
*[[Atherosclerosis]] 
*[[Acute cholecystitis]]
*[[Venous thromboembolism|Venous thrombosis]]
*[[Opportunistic infection|Opportunistic infections]] in [[Immunodeficiency|immunocompromised]] patients
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*''[[Aeromonas]]'' virulence factors including [[Endotoxin|endotoxins]], [[Hemolysin|hemolysins]], [[Enterotoxin|enterotoxins]], and adherence factors
*[[Cytomegalovirus|''Cytomegalovirus'']]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Blood culture]]
*[[Quantitative polymerase chain reaction|Quantitative PCR]] tests 
*Wound [[Culture collection|culture]]
|-
|-
!
! colspan="2" style="background:#DCDCDC;" align="center" |[[Human Immunodeficiency Virus (HIV)|HIV]]
!
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Mycobacterium avium complex]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*[[Abdominal distension|Abdominal distention]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Abdominal distension|Abdominal distention]]
*[[Hepatosplenomegaly]] 
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
Line 911: Line 941:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Elevated [[Liver function tests|liver enzymes]]
*Decreased [[CD4]] level
*[[Electrolyte disturbance|Electrolyte imbalance]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Opportunistic infection]] in [[Immunodeficiency|immunocompromised]] patients
*[[Lymphadenopathy]]
*[[Pulmonary]] [[infection]]
*Disseminated [[infection]]
*[[Lymphadenopathy|Adenopathy]] 
*[[Sleep hyperhidrosis|Night sweats]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Mycobacterium avium complex|''Mycobacterium avium complex'']]
*[[Human Immunodeficiency Virus (HIV)|''HIV'']]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Blood culture]]
*HIV virologic (viral load) test
*Immunoassay 
|-
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
! colspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |CBC
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[CMV colitis]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Chronic
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Watery
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
! style="background:#4479BA; color: #FFFFFF;" align="center" |Bloody
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Fatty
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
! style="background:#4479BA; color: #FFFFFF;" align="center" |RBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Ova/Parasite
! style="background:#4479BA; color: #FFFFFF;" align="center" |Osmotic gap
! style="background:#4479BA; color: #FFFFFF;" align="center" |Other
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Hgb
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Entamoeba histolytica]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*[[Abdominal distension|Abdominal distention]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Viral antigen assay
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Decreased [[CD4]] level
*[[Liver abscess]]
*Abnormal [[Liver function tests|liver function test]]
*Pleuropulmonary infection
*[[Cardiac]] [[infection]]
*[[Brain abscess]]
*[[Skin and soft-tissue infections|Cutaneous infection]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Encephalitis]] 
*[[Entamoeba histolytica|''Entamoeba histolytica'']]
*[[Guillain-Barré syndrome|Guillain–Barré syndrome]]
*[[Pneumonia]] 
*[[Retinitis]]
*[[Pericarditis]] and [[myocarditis]]
*[[Atherosclerosis]] 
*[[Venous thromboembolism|Venous thrombosis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Cytomegalovirus|''Cytomegalovirus'']]
*Antigen testing
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Serology 
*[[Quantitative polymerase chain reaction|Quantitative PCR]] tests 
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Human Immunodeficiency Virus (HIV)|HIV]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Giardia lamblia|Giardia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
Line 970: Line 1,025:
*[[Abdominal distension|Abdominal distention]]
*[[Abdominal distension|Abdominal distention]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Decreased [[CD4]] level
*[[Malabsorption]]
*[[Electrolyte disturbance|Electrolyte imbalance]]
*[[Urticaria]]
*[[Depression]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Lymphadenopathy]]
*''[[Giardia lamblia]]''
*Disseminated [[infection]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Human Immunodeficiency Virus (HIV)|''HIV'']]
*Antigen detection assays
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*HIV virologic (viral load) test
*Immunoassay 
|-
|-
!
! colspan="2" style="background:#DCDCDC;" align="center" |[[Cryptosporidium]]
!
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Entamoeba histolytica]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*[[Abdominal distension|Abdominal distention]]
*[[Abdominal distension|Abdominal distention]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Liver abscess]]
*Positive stool microscopy
*Pleuropulmonary infection
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
*[[Cardiac]] [[infection]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
*[[Brain abscess]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
*[[Skin and soft-tissue infections|Cutaneous infection]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Entamoeba histolytica|''Entamoeba histolytica'']]
*Elevated [[alkaline phosphatase]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Antigen testing
*Chronic, life–threatening illness in [[Immunodeficiency|immunocompromised]] patients
*Serology 
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Cryptosporidium|''Cryptosporidium'']]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Polymerase chain reaction
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Giardia lamblia|Giardia]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Microsporidia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*[[Abdominal distension|Abdominal distention]]
*[[Abdominal distension|Abdominal distention]]
Line 1,063: Line 1,089:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive stool microscopy
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Decreased [[CD4]] count
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Malabsorption]]
*[[Malabsorption]]
*[[Urticaria]]
*[[Keratitis]] 
*[[Depression]]
*[[Seizure]]
*[[Myositis]] 
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*''[[Giardia lamblia]]''
*[[Microsporidia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Antigen detection assays
*Antigen detection assays
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Cryptosporidium]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Isospora]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Abdominal distension|Abdominal distention]]
*[[Abdominal distension|Abdominal distention]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive stool microscopy
*Positive stool microscopy
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
*Positive [[fecal fat]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Elevated [[alkaline phosphatase]]
*Elevated [[Eosinophil granulocyte|eosinophils]] 
*[[Hypokalemia]]
*Increased [[creatinine]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Chronic, life–threatening illness in [[Immunodeficiency|immunocompromised]] patients
*Chronic illness in [[Immunodeficiency|immunocompromised]] patients
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Cryptosporidium|''Cryptosporidium'']]
*[[Isospora|''Isospora'']]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Polymerase chain reaction
*Detecting oocysts in the feces
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Microsporidia]]
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
! colspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |CBC
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
|-
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
! style="background:#4479BA; color: #FFFFFF;" align="center" |Chronic
! style="background:#4479BA; color: #FFFFFF;" align="center" |Watery
! style="background:#4479BA; color: #FFFFFF;" align="center" |Bloody
! style="background:#4479BA; color: #FFFFFF;" align="center" |Fatty
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |RBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Ova/Parasite
! style="background:#4479BA; color: #FFFFFF;" align="center" |Osmotic gap
! style="background:#4479BA; color: #FFFFFF;" align="center" |Other
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Hgb
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Carcinoid syndrome|Carcinoid tumor]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*[[Abdominal distension|Abdominal distention]]
* [[Abdominal distention]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
*Positive stool microscopy
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Decreased [[CD4]] count
*Elevated urinary [[5-Hydroxyindoleacetic acid|5–hydroxyindoleacetic acid]] ([[5-Hydroxyindoleacetic acid|5–HIAA]]) level
*High [[chromogranin A]]  
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Malabsorption]]
*[[Flushing|Facial flushing]]
*[[Keratitis]] 
*[[Jaundice]]
*[[Seizure]]
*[[Edema]]
*[[Myositis]] 
*[[Valvular heart disease]]
*[[Congestive heart failure|Right–sided heart failure]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Microsporidia]]
*Well–differentiated [[Neuroendocrine tumors|neuroendocrine tumor]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Antigen detection assays
*Blood [[chromogranin A]]  level
|-
|-
!
! colspan="2" style="background:#DCDCDC;" align="center" |[[VIPoma]]
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Isospora]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Abdominal distension|Abdominal distention]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
* [[Abdominal distention]]
* Abdominal [[RUQ]] [[tenderness]]
* [[Nausea]]
* [[Vomiting]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive stool microscopy
*Positive [[fecal fat]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Elevated [[Eosinophil granulocyte|eosinophils]] 
*Elevated [[VIP]] level
*[[Hypokalemia]]
*[[Hypokalemia]]
*Increased [[creatinine]]
*[[Hypochlorhydria]] or [[achlorhydria]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Low osmotic gap (<50 mOsm/kg)
*Chronic illness in [[Immunodeficiency|immunocompromised]] patients
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Rash]]
*[[Isospora|''Isospora'']]
* [[Facial flushing]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Dehydration]]
*Detecting oocysts in the feces
* [[Lethargy]]
* [[Muscle weakness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
* Primary secretory tumor
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
* Blood [[VIP]] levels
* Followed by imaging
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Carcinoid syndrome|Carcinoid tumor]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Zollinger-Ellison syndrome|Zollinger–Ellison syndrome]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
* [[Abdominal distention]]
** [[Tenderness|Epigastric tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* Positive [[secretin]] stimulation test
* Elevated serum [[chromogranin A]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
** [[Jaundice]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Gastrin]] producing [[tumor]] mainly in [[duodenum]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Elevated urinary [[5-Hydroxyindoleacetic acid|5–hydroxyindoleacetic acid]] ([[5-Hydroxyindoleacetic acid|5–HIAA]]) level
* [[Secretin]] stimulation test
*High [[chromogranin A]]
|-
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
! colspan="2" style="background:#DCDCDC;" align="center" |[[Neuroendocrine tumors|Somatostatinoma]]
*[[Flushing|Facial flushing]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
*[[Jaundice]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
*[[Edema]]
*[[Valvular heart disease]]
*[[Congestive heart failure|Right–sided heart failure]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Well–differentiated [[Neuroendocrine tumors|neuroendocrine tumor]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Blood [[chromogranin A]]  level
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[VIPoma]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
** [[Tenderness|Epigastric tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
* [[Abdominal distention]]
* Abdominal [[RUQ]] [[tenderness]]
* [[Nausea]]
* [[Vomiting]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
Line 1,253: Line 1,288:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Elevated [[VIP]] level
*Elevated fasting plasma [[somatostatin]]
*[[Hypokalemia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Hypochlorhydria]] or [[achlorhydria]]
** [[Diabetes mellitus]]
*Low osmotic gap (<50 mOsm/kg)
** [[Gallstone disease|Cholelithiasis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
** [[Jaundice]]
* [[Rash]]  
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Facial flushing]]
*[[Neuroendocrine tumors]] of D–cell origin
* [[Dehydration]]  
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Lethargy]]
*Plasma [[somatostatin]] level
* [[Muscle weakness]]
*Followed by imaging
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
* Primary secretory tumor
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |  
* Blood [[VIP]] levels
* Followed by imaging
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Zollinger-Ellison syndrome|Zollinger–Ellison syndrome]]
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
! colspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |CBC
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
|-
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
! style="background:#4479BA; color: #FFFFFF;" align="center" |Chronic
! style="background:#4479BA; color: #FFFFFF;" align="center" |Watery
! style="background:#4479BA; color: #FFFFFF;" align="center" |Bloody
! style="background:#4479BA; color: #FFFFFF;" align="center" |Fatty
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |RBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Ova/Parasite
! style="background:#4479BA; color: #FFFFFF;" align="center" |Osmotic gap
! style="background:#4479BA; color: #FFFFFF;" align="center" |Other
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Hgb
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Lymphoma]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
** [[Tenderness|Epigastric tenderness]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |–
*[[Hepatosplenomegaly]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* Positive [[secretin]] stimulation test
* Elevated serum [[chromogranin A]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
** [[Jaundice]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Gastrin]] producing [[tumor]] mainly in [[duodenum]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Secretin]] stimulation test
*[[Paraproteinemia]] 
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Malabsorption]]
* [[Lactose intolerance]]
* [[Ascites]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Primary [[tumor]] of GI tract
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Colonoscopy]] with [[biopsy]]
|-
|-
!
! colspan="2" style="background:#DCDCDC;" align="center" |[[Colorectal cancer]]
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Neuroendocrine tumors|Somatostatinoma]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
** [[Tenderness|Epigastric tenderness]]
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Elevated fasting plasma [[somatostatin]]
* Positive [[carcinoembryonic antigen]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
** [[Diabetes mellitus]]
*[[Metastasis]]
** [[Gallstone disease|Cholelithiasis]]
** [[Jaundice]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Neuroendocrine tumors]] of D–cell origin
*[[FAP|FAP gene]]
*[[Hereditary nonpolyposis colorectal cancer|HNPCC gene]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Plasma [[somatostatin]] level
** [[Colonoscopy]] and [[biopsy]]
*Followed by imaging
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Lymphoma]]
! colspan="2" style="background:#DCDCDC;" align="center" |Medications
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
* [[ACE inhibitor|ACE inhibitors]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
* [[Digoxin]]
* [[Cephalosporin|Cephalosporins]]
* [[Statins]]
* [[Thiazide|Thiazide diuretics]]
* [[Triptans]]
* [[Lactulose]]
* [[HIV AIDS medical therapy|Anti retroviral agents]]
* [[Chemotherapy|Chemotherapeutic agents]]
* [[Antifungal drug|Antifungals]]
* [[Magnesium]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
*[[Abdominal distention]]
*[[Hepatosplenomegaly]]
*[[Dehydration]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑/↓
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Paraproteinemia]] 
*Elevated plasma level of drug
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Malabsorption]]
*[[Inflammation]]
* [[Lactose intolerance]]
*[[Pseudomembranous enterocolitis|Pseudomembranous colitis]]
* [[Ascites]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Primary [[tumor]] of GI tract
*Clinical evaluation after discontinuation of the drugs
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Colonoscopy]] with [[biopsy]]
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Colorectal cancer]]
! colspan="2" style="background:#DCDCDC;" align="center" |Factitious diarrhea
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*Diffuse [[Tenderness (medicine)|abdominal tenderness]]
*[[Abdominal distention]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑/↓
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* Positive [[carcinoembryonic antigen]]
*[[Hypokalemia]] 
*[[Metabolic alkalosis]]
*[[Hypermagnesemia]] 
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Metastasis]]
*[[Malabsorption]]
*[[Lethargy]]
*[[Generalized weakness]]
*[[Acute kidney injury|Acute renal failure]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[FAP|FAP gene]]
*[[Medication|Medications]]
*[[Hereditary nonpolyposis colorectal cancer|HNPCC gene]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
** [[Colonoscopy]] and [[biopsy]]
*Clinical evaluation after discontinuation of the drugs
|-
|-
!
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
!
! colspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
!
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |CBC
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
!
!
!
!
!
!
!
!
!
!
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |Medications
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
* [[ACE inhibitor|ACE inhibitors]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Chronic
* [[Digoxin]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Watery
* [[Cephalosporin|Cephalosporins]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Bloody
* [[Statins]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Fatty
* [[Thiazide|Thiazide diuretics]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
* [[Triptans]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |RBC
* [[Lactulose]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Ova/Parasite
* [[HIV AIDS medical therapy|Anti retroviral agents]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Osmotic gap
* [[Chemotherapy|Chemotherapeutic agents]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Other
* [[Antifungal drug|Antifungals]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
* [[Magnesium]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Hgb
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Heavy metal ingestion]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |±
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*[[Abdominal distention]]
*[[Abdominal distention]]
*[[Dehydration]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑/↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Elevated plasma level of drug
*Elevated plasma heavy metal level
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Inflammation]]
*[[Headache]]
*[[Pseudomembranous enterocolitis|Pseudomembranous colitis]]
*[[Paresthesia|Numbness]]
*[[Alopecia]]
*[[Vertigo]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Heavy metal ingestion]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Clinical evaluation after discontinuation of the drugs
*Plasma level of heavy metal
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |Factitious diarrhea
! colspan="2" style="background:#DCDCDC;" align="center" |[[Organophosphate poisoning]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
Line 1,485: Line 1,527:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*[[Abdominal distention]]
*[[Saliva|Salivation]]
*[[Nausea and vomiting|Vomiting]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↑/↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
Line 1,497: Line 1,540:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Hypokalemia]] 
*Reduced RBC acetylcholinesterase
*[[Metabolic alkalosis]]
*Plasma [[cholinesterase]] activity
*[[Hypermagnesemia]] 
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Malabsorption]]
*[[Dysautonomia|Autonomic dysfunction]]
*[[Lethargy]]
*Motor deficit
*[[Generalized weakness]]
*Sensory deficit
*[[Acute kidney injury|Acute renal failure]]
*[[Bronchospasm]]
*[[Urination]]
*[[Miosis]]
*[[Bradycardia]]
*[[Lacrimation]]
*[[Sweating]]
*[[Cardiac arrhythmia|Cardiac arrhythmias]]
*[[Acute kidney injury|Acute renal injury]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Medication|Medications]]
*[[Neurotoxin|Neurotoxins]] bind to [[ACHE|acetylcholinesterase]] (AChE)
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Clinical evaluation after discontinuation of the drugs
*Clinical diagnosis
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Heavy metal ingestion]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Opium withdrawal]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
Line 1,518: Line 1,567:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*[[Abdominal distention]]
*Hyperactive [[Stomach rumble|bowel sounds]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
Line 1,530: Line 1,579:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Elevated plasma heavy metal level
*[[Azotemia]]
*[[Hypokalemia]]
*[[Metabolic alkalosis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Headache]]
*[[Dysphoria]] 
*[[Paresthesia|Numbness]]
*[[Agitation (emotion)|Restlessness]]
*[[Alopecia]]
*[[Perspiration|Sweating]]
*[[Vertigo]]
*[[Rhinorrhea]]
*[[Tears|Lacrimation]]
*[[Myalgia]]
*[[Arthralgia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Heavy metal ingestion]]
*[[Opium|Opium withdrawal]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Plasma level of heavy metal
*Clinical diagnosis following [[opium withdrawal]]
|-
|-
!
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
!
! colspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
!
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |CBC
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
!
!
!
!
!
!
!
!
!
!
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Organophosphate poisoning]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Chronic
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Watery
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Bloody
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
! style="background:#4479BA; color: #FFFFFF;" align="center" |Fatty
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |RBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Ova/Parasite
! style="background:#4479BA; color: #FFFFFF;" align="center" |Osmotic gap
! style="background:#4479BA; color: #FFFFFF;" align="center" |Other
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
! style="background:#4479BA; color: #FFFFFF;" align="center" |Hgb
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Short bowel syndrome]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
* [[Abdominal distension|Abdominal distention]]
*[[Saliva|Salivation]]
* [[Tenderness (medicine)|Abdominal tenderness]]
*[[Nausea and vomiting|Vomiting]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
*Positive [[fecal fat]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | ↑
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Reduced RBC acetylcholinesterase
* [[Hypoalbuminemia]]
*Plasma [[cholinesterase]] activity
* High level of [[Acute phase protein|acute phase reactant]]
* Abnormal [[liver function tests]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Dysautonomia|Autonomic dysfunction]]
* Prior [[Intestine|intestinal]] surgery
*Motor deficit
* [[Malabsorption]]
*Sensory deficit
* [[Crohn's disease]]
*[[Bronchospasm]]
* [[Cancer|Malignancy]]
*[[Urination]]
* Peripheral [[edema]]
*[[Miosis]]
* [[Muscle atrophy]]
*[[Bradycardia]]
*[[Lacrimation]]
*[[Sweating]]
*[[Cardiac arrhythmia|Cardiac arrhythmias]]
*[[Acute kidney injury|Acute renal injury]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Neurotoxin|Neurotoxins]] bind to [[ACHE|acetylcholinesterase]] (AChE)
* Surgical [[bowel resection]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Clinical diagnosis
*Clinical diagnosis following [[bowel resection]]
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Opium withdrawal]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Radiation enteropathy|Radiation enteritis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*Hyperactive [[Stomach rumble|bowel sounds]]
* [[Tenderness (medicine)|Abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |–
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Azotemia]]
*Positive [[fecal fat]]  
*[[Hypokalemia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
*[[Metabolic alkalosis]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Dysphoria]] 
*Vitamin B12 deficiency
*[[Agitation (emotion)|Restlessness]]
*[[Hypoalbuminemia]]
*[[Perspiration|Sweating]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Rhinorrhea]]
*Prior history of [[Cancer|malignancy]] and [[radiation therapy]]
*[[Tears|Lacrimation]]
*[[Malabsorption]]
*[[Myalgia]]
*[[Telangiectasia|Telangiectasias]] 
*[[Arthralgia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Opium|Opium withdrawal]]
*[[Radiation therapy|Radiation]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Clinical diagnosis following [[opium withdrawal]]
*Segmental bowel [[inflammation]] on [[endoscopy]] or [[colonoscopy]]
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Short bowel syndrome]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Gastric dumping syndrome|Dumping syndrome]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
Line 1,650: Line 1,701:
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
* [[Abdominal distension|Abdominal distention]]
*Hyperactive [[bowel sound]]
* [[Tenderness (medicine)|Abdominal tenderness]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive [[fecal fat]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | ↑
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Hypoalbuminemia]]
* [[Hypoglycemia]]
* High level of [[Acute phase protein|acute phase reactant]]
* [[Hydrogen Breath Test|Hydrogen breath test]]
* Abnormal [[liver function tests]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* Prior [[Intestine|intestinal]] surgery
*[[Malnutrition]]
* [[Malabsorption]]
*[[Fat soluble vitamins|Fat soluble vitamin]] deficiency
* [[Crohn's disease]]
* [[Cancer|Malignancy]]
* Peripheral [[edema]]
* [[Muscle atrophy]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* Surgical [[bowel resection]]
*[[Post operative complications|Postgastrectomy]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Clinical diagnosis following [[bowel resection]]
*Clinical diagnosis following [[gastrectomy]]
|-
|-
!
! colspan="2" rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause
!
! colspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Duration
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |Diarrhea
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Fever
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Abdominal pain
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Weight loss
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |GI signs
!
! colspan="5" style="background:#4479BA; color: #FFFFFF;" align="center" |Stool exam
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" |CBC
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Other lab findings
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Extra intestinal findings
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Cause/Pathogenesis
!
! rowspan="2" style="background:#4479BA; color: #FFFFFF;" align="center" |Gold standard diagnosis
!
!
!
!
!
!
!
!
!
!
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Radiation enteropathy|Radiation enteritis]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |Acute
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Chronic
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Watery
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Bloody
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Fatty
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
! style="background:#4479BA; color: #FFFFFF;" align="center" |RBC
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Ova/Parasite
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Osmotic gap
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
! style="background:#4479BA; color: #FFFFFF;" align="center" |Other
* [[Tenderness (medicine)|Abdominal tenderness]]
! style="background:#4479BA; color: #FFFFFF;" align="center" |WBC
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Hgb
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
! style="background:#4479BA; color: #FFFFFF;" align="center" |Plt
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Positive [[fecal fat]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |↓
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Vitamin B12 deficiency
*[[Hypoalbuminemia]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Prior history of [[Cancer|malignancy]] and [[radiation therapy]]
*[[Malabsorption]]
*[[Telangiectasia|Telangiectasias]] 
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Radiation therapy|Radiation]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Segmental bowel [[inflammation]] on [[endoscopy]] or [[colonoscopy]]
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Gastric dumping syndrome|Dumping syndrome]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | +
| style="padding: 5px 5px; background: #F5F5F5;" align="Left" |
*Hyperactive [[bowel sound]]
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" | –
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" | Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="center" |Nl
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* [[Hypoglycemia]]
* [[Hydrogen Breath Test|Hydrogen breath test]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Malnutrition]]
*[[Fat soluble vitamins|Fat soluble vitamin]] deficiency
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*[[Post operative complications|Postgastrectomy]]
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
*Clinical diagnosis following [[gastrectomy]]
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Abetalipoproteinemia]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Abetalipoproteinemia]]
Line 1,796: Line 1,782:
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
| style="padding: 5px 5px; background: #F5F5F5;" align="left" |
* Clinical findings and low [[triglyceride]] and [[cholesterol]] level
* Clinical findings and low [[triglyceride]] and [[cholesterol]] level
|-
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|-
|-
! colspan="2" style="background:#DCDCDC;" align="center" |[[Hyperthyroidism]]
! colspan="2" style="background:#DCDCDC;" align="center" |[[Hyperthyroidism]]

Latest revision as of 23:00, 8 February 2019

To review the differential diagnosis of diarrhea, click here.

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sadaf Sharfaei M.D.[2], Seyedmahdi Pahlavani, M.D. [3]

Overview

The differential diagnosis for chronic diarrhea is enormous, with a large number of diagnostic tests available that can be used to evaluate these patients. Classifying a patient's chronic diarrhea into a subcategory such as watery, fatty and inflammatory helps to direct the diagnostic work-up. Some watery causes of chronic diarrhea which should be differentiated from one another include crohn's disease, hyperthyroidism, VIPoma, lactose intolerance, celiac disease and irritable bowel syndrome (IBS). The causes of fatty diarrhea that should be differentiated from one another include celiac sprue, pancreatic insufficiency, bacterial overgrowth and maldigestion problems which results from pancreatic exocrine insufficiency. Finally, the inflammatory causes of chronic diarrhea such as ulcerative colitis and entamoeba histolytica must also be differentiated.

Differential Diagnosis of Chronic Diarrhea from other diseases

The following table outlines the major differential diagnoses of chronic diarrhea.[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]

Abbreviations: GI: Gastrointestinal, CBC: Complete blood count, WBC: White blood cell, RBC: Red blood cell, Plt: Platelet, Hgb: Hemoglobin, ESR: Erythrocyte sedimentation rate, CRP: C–reactive protein, IgE: Immunoglobulin E, IgA: Immunoglobulin A, ETEC: Escherichia coli enteritis, EPEC: Enteropathogenic Escherichia coli, EIEC: Enteroinvasive Escherichia coli, EHEC: Enterohemorrhagic Escherichia coli, EAEC: Enteroaggregative Escherichia coli, Nl: Normal, ASCA: Anti saccharomyces cerevisiae antibodies, ANCA: Anti–neutrophil cytoplasmic antibody, DNA: Deoxyribonucleic acid, CFTR: Cystic fibrosis transmembrane conductance regulator, SLC10A2: Solute carrier family 10 member 2, SeHCAT: Selenium homocholic acid taurine or tauroselcholic acid, IEL: Intraepithelial lymphocytes, MRCP: Magnetic resonance cholangiopancreatography, ANA: Antinuclear antibodies, AMA: Anti-mitochondrial antibody, LDH: Lactate dehydrogenase, CPK: Creatine phosphokinasePCR: Polymerase chain reaction, ELISA: Enzyme–linked immunosorbent assay, LT: Heat–labile enterotoxin, ST: Heat–stable enterotoxin, RT-PCR: Reverse–transcriptase polymerase chain reaction, CD4: Cluster of differentiation 4, HIV: Human immunodeficiency virus, RUQ: Right-upper quadrant, VIP: Vasoactive intestinal peptide, GI: Gastrointestinal, FAP: Familial adenomatous polyposis, HNPCC: Hereditary nonpolyposis colorectal cancer, MTP: Microsomal triglyceride transfer protein, Scl‑70: Anti–topoisomerase I, TSH: Thyroid-stimulating hormone, T4: Thyroxine, T3: Triiodothyronine, DTR: Deep tendon reflex, RNA: Ribonucleic acid

Cause Clinical manifestation Lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Symptoms GI signs
Duration Diarrhea Fever Abdominal pain Weight loss
Stool exam CBC Other lab findings
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Crohn's disease + + + + ± + + + + Nl
  • Abnormal immune response to self antigens
Ulcerative colitis + + + + ± + + + + Nl
  • Abnormal immune response to self antigens
Celiac disease + ± ± + + Nl Nl Nl
Cause Duration Diarrhea Fever Abdominal pain Weight loss GI signs Stool exam CBC Other lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Cystic fibrosis + + ± + + Nl Nl Nl
Chronic pancreatitis + + + + + Nl Nl Nl Nl
Bile acid malabsorption + + + + Nl Nl Nl Nl
Microscopic colitis + + + + Nl Nl Nl
Cause Duration Diarrhea Fever Abdominal pain Weight loss GI signs Stool exam CBC Other lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Infective colitis + + + + + + + + + Nl
Ischemic colitis + + + + + + + + + Nl
Lactose intolerance + + + + Nl Nl Nl
  • Lactose tolerance test
  • Genetic testing
  • Reduction of lactase enzyme activity or inability to produce persistent lactase
  • Congenital lactase deficiency
  • Secondary lactose malabsorption
Irritable bowel syndrome + ± ± ± Nl Nl Nl Nl Nl
  • Unknown
  • Diagnosis of exclusion
Cause Duration Diarrhea Fever Abdominal pain Weight loss GI signs Stool exam CBC Other lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Whipple's disease + + + ± + + Nl ↓/↑
Tropical sprue + + + + + + + + Nl Nl Nl
  • Diagnosis of exclusion
Small bowel bacterial overgrowth + + + + + + Nl Nl Nl
  • Diagnosis of exclusion
Cause Duration Diarrhea Fever Abdominal pain Weight loss GI signs Stool exam CBC Other lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Salmonellosis + + + + + + + + Nl Nl
Escherichia coli enteritis EPEC + + + + + + + + + Nl Nl Nl
EAEC + + + + + + + Nl
Aeromonas + + + + + + + + Nl Nl Nl
Cause Duration Diarrhea Fever Abdominal pain Weight loss GI signs Stool exam CBC Other lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Mycobacterium avium complex + + + + + + + + Nl Nl
CMV colitis + + + ± + + + Nl
  • Viral antigen assay
Nl Nl
HIV + + + + + + Nl Nl
  • HIV virologic (viral load) test
  • Immunoassay 
Cause Duration Diarrhea Fever Abdominal pain Weight loss GI signs Stool exam CBC Other lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Entamoeba histolytica + + + + + + + + + Nl Nl Nl
  • Antigen testing
  • Serology 
Giardia + + + + + + Nl Nl Nl Nl
  • Antigen detection assays
Cryptosporidium + + + + + Nl
  • Positive stool microscopy
Nl Nl Nl
  • Polymerase chain reaction
Microsporidia + + + + + + Nl
  • Positive stool microscopy
Nl Nl Nl
  • Decreased CD4 count
  • Antigen detection assays
Isospora + + + + + + + + + + Nl Nl Nl
  • Detecting oocysts in the feces
Cause Duration Diarrhea Fever Abdominal pain Weight loss GI signs Stool exam CBC Other lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Carcinoid tumor + + + + + + Nl Nl Nl
VIPoma + + + + + + Nl Nl Nl
  • Primary secretory tumor
  • Blood VIP levels
  • Followed by imaging
Zollinger–Ellison syndrome + + + + + + Nl Nl
Somatostatinoma + + + + Nl Nl Nl
Cause Duration Diarrhea Fever Abdominal pain Weight loss GI signs Stool exam CBC Other lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Lymphoma + + + + + + + Nl Nl Nl
  • Primary tumor of GI tract
Colorectal cancer + + + + + + + Nl Nl Nl
Medications + + + ± ± + + ↑/↓ Nl Nl
  • Elevated plasma level of drug
  • Clinical evaluation after discontinuation of the drugs
Factitious diarrhea + + + + + ↑/↓ Nl Nl Nl
  • Clinical evaluation after discontinuation of the drugs
Cause Duration Diarrhea Fever Abdominal pain Weight loss GI signs Stool exam CBC Other lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Heavy metal ingestion + + + + Nl Nl Nl Nl
  • Elevated plasma heavy metal level
  • Plasma level of heavy metal
Organophosphate poisoning + + + + Nl Nl Nl Nl
  • Clinical diagnosis
Opium withdrawal + + + + Nl Nl Nl Nl
Cause Duration Diarrhea Fever Abdominal pain Weight loss GI signs Stool exam CBC Other lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Short bowel syndrome + + + + + Nl Nl
Radiation enteritis + + + + + + + + + Nl Nl Nl
Dumping syndrome + + + + Nl Nl Nl Nl
Cause Duration Diarrhea Fever Abdominal pain Weight loss GI signs Stool exam CBC Other lab findings Extra intestinal findings Cause/Pathogenesis Gold standard diagnosis
Acute Chronic Watery Bloody Fatty WBC RBC Ova/Parasite Osmotic gap Other WBC Hgb Plt
Abetalipoproteinemia + + + + + Nl Nl Nl Nl
Hyperthyroidism + + ± + + Nl Nl Nl Nl
Diabetic neuropathy + + + + + Nl Nl Nl
Systemic sclerosis + + ± + + + + Nl Nl Nl
  • Clinical diagnosis
  • Followed by serologic tests

References

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