Appendicitis CT: Difference between revisions
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{{Appendicitis}} | {{Appendicitis}} | ||
{{CMG}} | {{CMG}} {{AE}} {{FH}} | ||
==Overview== | ==Overview== | ||
[[CT scan]]s are the diagnostic test of choice for detecting [[appendicitis]]. Findings on CT scan suggestive of appendicitis include appendicial wall thickening along with peri-appendiceal inflammation. | |||
== | ==CT== | ||
CT scan may be helpful in the diagnosis of appendicitis. A properly performed [[CT scan]] with modern equipment has a detection rate of over 95%. Findings on CT scan suggestive of appendicitis include:<ref name="wiki1">Appendicitis. Wikipedia (26 November 2015).https://en.wikipedia.org/wiki/Appendicitis#Imaging Accessed on December 7, 2015</ref> | |||
*Increase in appendiceal lumen with the outer-wall-to-outer-wall transverse diameter greater than 6 mm.<ref name="pmid19597855">{{cite journal |vauthors=Webb EM, Wang ZJ, Coakley FV, Poder L, Westphalen AC, Yeh BM |title=The equivocal appendix at CT: prevalence in a control population |journal=Emerg Radiol |volume=17 |issue=1 |pages=57–61 |year=2010 |pmid=19597855 |pmc=2773125 |doi=10.1007/s10140-009-0826-6 |url=}}</ref> | |||
*Appendiceal wall thickening (wall ≥ 3mm)<ref name="pmid14616200">{{cite journal |vauthors=Choi D, Park H, Lee YR, Kook SH, Kim SK, Kwag HJ, Chung EC |title=The most useful findings for diagnosing acute appendicitis on contrast-enhanced helical CT |journal=Acta Radiol |volume=44 |issue=6 |pages=574–82 |year=2003 |pmid=14616200 |doi= |url=}}</ref> | |||
* | **Appendiceal wall hyperenhancement | ||
**Mural stratification of the appendiceal wall | |||
*Periappendiceal inflammation includes:<ref name="pmid14616200" /> | |||
**Periappendiceal fat stranding | |||
**Thickening of the [[Fascia|lateral conal fascia]], and [[mesoappendix]] | |||
**Extraluminal fluid | |||
**[[Phlegmon]] | |||
**[[Abscess]] | |||
**[[Ileocecal]] mild [[Lymphadenopathy|lymph node enlargement]] | |||
**[[Inflammatory]] thickening of contiguous structures | |||
==References== | ==References== | ||
{{reflist|2}} | {{reflist|2}} | ||
{{WH}} | |||
{{WS}} | |||
[[Category:Emergency medicine]] | |||
[[Category:Inflammations]] | |||
[[Category:Medical emergencies]] | |||
[[Category:General surgery]] | |||
[[Category:Gastroenterology]] | |||
[[Category:Disease]] | |||
Latest revision as of 20:27, 29 July 2020
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Appendicitis Microchapters |
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Appendicitis On the Web |
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American Roentgen Ray Society Images of Appendicitis |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Farwa Haideri [2]
Overview
CT scans are the diagnostic test of choice for detecting appendicitis. Findings on CT scan suggestive of appendicitis include appendicial wall thickening along with peri-appendiceal inflammation.
CT
CT scan may be helpful in the diagnosis of appendicitis. A properly performed CT scan with modern equipment has a detection rate of over 95%. Findings on CT scan suggestive of appendicitis include:[1]
- Increase in appendiceal lumen with the outer-wall-to-outer-wall transverse diameter greater than 6 mm.[2]
- Appendiceal wall thickening (wall ≥ 3mm)[3]
- Appendiceal wall hyperenhancement
- Mural stratification of the appendiceal wall
- Periappendiceal inflammation includes:[3]
- Periappendiceal fat stranding
- Thickening of the lateral conal fascia, and mesoappendix
- Extraluminal fluid
- Phlegmon
- Abscess
- Ileocecal mild lymph node enlargement
- Inflammatory thickening of contiguous structures
References
- ↑ Appendicitis. Wikipedia (26 November 2015).https://en.wikipedia.org/wiki/Appendicitis#Imaging Accessed on December 7, 2015
- ↑ Webb EM, Wang ZJ, Coakley FV, Poder L, Westphalen AC, Yeh BM (2010). "The equivocal appendix at CT: prevalence in a control population". Emerg Radiol. 17 (1): 57–61. doi:10.1007/s10140-009-0826-6. PMC 2773125. PMID 19597855.
- ↑ 3.0 3.1 Choi D, Park H, Lee YR, Kook SH, Kim SK, Kwag HJ, Chung EC (2003). "The most useful findings for diagnosing acute appendicitis on contrast-enhanced helical CT". Acta Radiol. 44 (6): 574–82. PMID 14616200.