Lung mass differential diagnosis: Difference between revisions

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==Differential Diagnosis==
==Differential Diagnosis==
*The table below summarizes the findings that differentiate lung masses according to clinical features, laboratory findings, imaging features, histological features, and genetic studies.<ref name="pmid10682770">{{cite journal |vauthors=Erasmus JJ, Connolly JE, McAdams HP, Roggli VL |title=Solitary pulmonary nodules: Part I. Morphologic evaluation for differentiation of benign and malignant lesions |journal=Radiographics |volume=20 |issue=1 |pages=43–58 |date=2000 |pmid=10682770 |doi=10.1148/radiographics.20.1.g00ja0343 |url=}}</ref>
*The table below summarizes the findings that differentiate lung masses according to clinical features, laboratory findings, imaging features, histological features, and genetic studies.<ref name="pmid10682770">{{cite journal |vauthors=Erasmus JJ, Connolly JE, McAdams HP, Roggli VL |title=Solitary pulmonary nodules: Part I. Morphologic evaluation for differentiation of benign and malignant lesions |journal=Radiographics |volume=20 |issue=1 |pages=43–58 |date=2000 |pmid=10682770 |doi=10.1148/radiographics.20.1.g00ja0343 |url=}}</ref><ref name="pmid23077446">{{cite journal |vauthors=Gümüştaş S, Inan N, Akansel G, Ciftçi E, Demirci A, Ozkara SK |title=Differentiation of malignant and benign lung lesions with diffusion-weighted MR imaging |journal=Radiol Oncol |volume=46 |issue=2 |pages=106–13 |date=June 2012 |pmid=23077446 |pmc=3472932 |doi=10.2478/v10019-012-0021-3 |url=}}</ref>
*'''''Abrevations''''': HPV: human papillomavirus; CEA: Carcino embryogenic antigen; TTF1: Thyroid transcription factor-1; EMA: Epithelial membrane antigen; CK: Cyto keratin; CD: Cluster differentiation; NCAM: Neural Cell Differentiation Molecule; MMP's: Mettaloprotineases matrix;  GFAP: Glial fibrocilliary acid protein
{| class="wikitable"
{| class="wikitable"
! colspan="11" |Abrevations:
HPV: human papillomavirus; CEA: Carcino embryogenic antigen; TTF1: Thyroid transcription factor-1; EMA: Epithelial membrane antigen; CK: Cyto keratin; CD: Cluster differentiation; NCAM: Neural Cell Differentiation Molecule; MMP's: Mettaloprotineases matrix;  GFAP: Glial fibrocilliary acid protein
|-
|-
! colspan="11" style="background:#4479BA; color: #FFFFFF;" align="center" + |Benign Lung Tumors<ref name="pmid23077446">{{cite journal |vauthors=Gümüştaş S, Inan N, Akansel G, Ciftçi E, Demirci A, Ozkara SK |title=Differentiation of malignant and benign lung lesions with diffusion-weighted MR imaging |journal=Radiol Oncol |volume=46 |issue=2 |pages=106–13 |date=June 2012 |pmid=23077446 |pmc=3472932 |doi=10.2478/v10019-012-0021-3 |url=}}</ref>
!Type
|-
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Category
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Benign lung tumor
! colspan="2" |Disease
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk/Epidemiology
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk/Epidemiology
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Pleuripotent cells
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Pleuripotent cells
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! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
|-
|-
| rowspan="5" |Benign
| rowspan="2" style="background:#DCDCDC;" align="center" + |'''[[Papilloma]]'''<ref name="pmid3969658">{{cite journal |vauthors=Maxwell RJ, Gibbons JR, O'Hara MD |title=Solitary squamous papilloma of the bronchus |journal=Thorax |volume=40 |issue=1 |pages=68–71 |date=January 1985 |pmid=3969658 |pmc=459982 |doi= |url=}}</ref>
| rowspan="2" style="background:#DCDCDC;" align="center" + |'''[[Papilloma]]'''<ref name="pmid3969658">{{cite journal |vauthors=Maxwell RJ, Gibbons JR, O'Hara MD |title=Solitary squamous papilloma of the bronchus |journal=Thorax |volume=40 |issue=1 |pages=68–71 |date=January 1985 |pmid=3969658 |pmc=459982 |doi= |url=}}</ref>
| colspan="2" style="background:#DCDCDC;" align="center" + |'''[[Squamous cell papilloma]]'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''[[Squamous cell papilloma]]'''
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* N/A
* N/A
|-
|-
!
! colspan="11" style="background:#4479BA; color: #FFFFFF;" align="center" + |Malignant Lung Tumors<ref name="pmid7863581">{{cite journal |vauthors=Kelley LC, Puette M, Langheinrich KA, King B |title=Bovine pulmonary blastomas: histomorphologic description and immunohistochemistry |journal=Vet. Pathol. |volume=31 |issue=6 |pages=658–62 |date=November 1994 |pmid=7863581 |doi=10.1177/030098589403100605 |url=}}</ref>
! colspan="11" style="background:#4479BA; color: #FFFFFF;" align="center" + |Malignant Lung Tumors<ref name="pmid7863581">{{cite journal |vauthors=Kelley LC, Puette M, Langheinrich KA, King B |title=Bovine pulmonary blastomas: histomorphologic description and immunohistochemistry |journal=Vet. Pathol. |volume=31 |issue=6 |pages=658–62 |date=November 1994 |pmid=7863581 |doi=10.1177/030098589403100605 |url=}}</ref>
|-
|-
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
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! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
|-
|-
|
| rowspan="3" style="background:#DCDCDC;" align="center" + |'''[[Squamous cell carcinoma of the lung|Squamous cell carcinoma]] (SCC)'''<ref name="pmid5528918">{{cite journal |vauthors=Roth E, Smidt D |title=[Studies on early ejaculate collection using electroejaculation in German improved land-swines and Goettinger miniature pigs] |language=German |journal=Berl. Munch. Tierarztl. Wochenschr. |volume=83 |issue=1 |pages=7–11 |date=January 1970 |pmid=5528918 |doi= |url=}}</ref>
| rowspan="3" style="background:#DCDCDC;" align="center" + |'''[[Squamous cell carcinoma of the lung|Squamous cell carcinoma]] (SCC)'''<ref name="pmid5528918">{{cite journal |vauthors=Roth E, Smidt D |title=[Studies on early ejaculate collection using electroejaculation in German improved land-swines and Goettinger miniature pigs] |language=German |journal=Berl. Munch. Tierarztl. Wochenschr. |volume=83 |issue=1 |pages=7–11 |date=January 1970 |pmid=5528918 |doi= |url=}}</ref>
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Papillary'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Papillary'''
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* [[Bone]]
* [[Bone]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Clear cell'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Clear cell'''
|
|
* Cells with clear [[cytoplasm]]
* Cells with clear [[cytoplasm]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Basaloid'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Basaloid'''
|
|
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* Poor differentiation
* Poor differentiation
|-
|-
|
| colspan="3" style="background:#DCDCDC;" align="center" + |'''[[Small cell carcinoma]]'''<ref name="pmid16226617">{{cite journal |vauthors=Jackman DM, Johnson BE |title=Small-cell lung cancer |journal=Lancet |volume=366 |issue=9494 |pages=1385–96 |date=2005 |pmid=16226617 |doi=10.1016/S0140-6736(05)67569-1 |url=}}</ref>
| colspan="3" style="background:#DCDCDC;" align="center" + |'''[[Small cell carcinoma]]'''<ref name="pmid16226617">{{cite journal |vauthors=Jackman DM, Johnson BE |title=Small-cell lung cancer |journal=Lancet |volume=366 |issue=9494 |pages=1385–96 |date=2005 |pmid=16226617 |doi=10.1016/S0140-6736(05)67569-1 |url=}}</ref>
|
|
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* Liver
* Liver
|-
|-
|
| rowspan="10" style="background:#DCDCDC;" align="center" + |'''[[Adenocarcinoma]]'''<ref name="Kumar-adenocarcinoma">{{cite book |chapter=Chapter 13, box on morphology of adenocarcinoma |author=Mitchell, Richard Sheppard; Kumar, Vinay; Abbas, Abul K.; Fausto, Nelson |title=Robbins Basic Pathology|publisher=Saunders |location=Philadelphia |isbn=1-4160-2973-7 |edition=8th}}</ref><ref name="pmid17625570">{{cite journal| author=Soda M, Choi YL, Enomoto M, Takada S, Yamashita Y, Ishikawa S et al.| title=Identification of the transforming EML4-ALK fusion gene in non-small-cell lung cancer. | journal=Nature | year= 2007 | volume= 448 | issue= 7153 | pages= 561-6 | pmid=17625570 | doi=10.1038/nature05945 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=17625570  }}</ref><ref>Adenocarcinoma of the lung. Librepathology 2015. http://librepathology.org/wiki/index.php/File:Adenocarcinoma_%283950819000%29.jpg</ref>
| rowspan="10" style="background:#DCDCDC;" align="center" + |'''[[Adenocarcinoma]]'''<ref name="Kumar-adenocarcinoma">{{cite book |chapter=Chapter 13, box on morphology of adenocarcinoma |author=Mitchell, Richard Sheppard; Kumar, Vinay; Abbas, Abul K.; Fausto, Nelson |title=Robbins Basic Pathology|publisher=Saunders |location=Philadelphia |isbn=1-4160-2973-7 |edition=8th}}</ref><ref name="pmid17625570">{{cite journal| author=Soda M, Choi YL, Enomoto M, Takada S, Yamashita Y, Ishikawa S et al.| title=Identification of the transforming EML4-ALK fusion gene in non-small-cell lung cancer. | journal=Nature | year= 2007 | volume= 448 | issue= 7153 | pages= 561-6 | pmid=17625570 | doi=10.1038/nature05945 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=17625570  }}</ref><ref>Adenocarcinoma of the lung. Librepathology 2015. http://librepathology.org/wiki/index.php/File:Adenocarcinoma_%283950819000%29.jpg</ref>
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Acinar adenocarcinoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Acinar adenocarcinoma'''
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* Gastrointestinal Tract
* Gastrointestinal Tract
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Papillary adenocarcinoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Papillary adenocarcinoma'''
|
|
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* [[Mucinous]] or non-mucinous
* [[Mucinous]] or non-mucinous
|-
|-
|
| rowspan="3" style="background:#DCDCDC;" align="center" + |'''Bronchio-alveolar carcinoma'''
| rowspan="3" style="background:#DCDCDC;" align="center" + |'''Bronchio-alveolar carcinoma'''
| style="background:#DCDCDC;" align="center" + |'''Non-mucinous'''
| style="background:#DCDCDC;" align="center" + |'''Non-mucinous'''
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* [[Pneumocytes|Type II cells]]
* [[Pneumocytes|Type II cells]]
|-
|-
|
| style="background:#DCDCDC;" align="center" + |'''Mucinous'''
| style="background:#DCDCDC;" align="center" + |'''Mucinous'''
|
|
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* Cytologic atypia  
* Cytologic atypia  
|-
|-
|
| style="background:#DCDCDC;" align="center" + |'''Mixed non-mucinous and mucinous or indeterminate'''
| style="background:#DCDCDC;" align="center" + |'''Mixed non-mucinous and mucinous or indeterminate'''
|
|
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* Low to high grade differentiated cells.
* Low to high grade differentiated cells.
|-
|-
|
| rowspan="5" style="background:#DCDCDC;" align="center" + |'''Solid adenocarcinoma with mucin production'''
| rowspan="5" style="background:#DCDCDC;" align="center" + |'''Solid adenocarcinoma with mucin production'''
| style="background:#DCDCDC;" align="center" + |'''Fetal adenocarcinoma'''
| style="background:#DCDCDC;" align="center" + |'''Fetal adenocarcinoma'''
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** Rounded morules of polygonal cells with abundant [[eosinophilic]] and finely granular [[cytoplasm]]
** Rounded morules of polygonal cells with abundant [[eosinophilic]] and finely granular [[cytoplasm]]
|-
|-
|
| style="background:#DCDCDC;" align="center" + |'''Mucinous (“colloid”) carcinoma'''
| style="background:#DCDCDC;" align="center" + |'''Mucinous (“colloid”) carcinoma'''
|
|
* Dissecting pools of [[mucin]] containing [[neoplastic]] cells
* Dissecting pools of [[mucin]] containing [[neoplastic]] cells
|-
|-
|
| style="background:#DCDCDC;" align="center" + |'''Mucinous cystadenocarcinoma'''
| style="background:#DCDCDC;" align="center" + |'''Mucinous cystadenocarcinoma'''
|
|
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* [[Neoplastic]] [[mucinous]] [[epithelium]] grows along alveolar walls
* [[Neoplastic]] [[mucinous]] [[epithelium]] grows along alveolar walls
|-
|-
|
| style="background:#DCDCDC;" align="center" + |'''Signet ring adenocarcinoma'''
| style="background:#DCDCDC;" align="center" + |'''Signet ring adenocarcinoma'''
|
|
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* Components of other cells are present.
* Components of other cells are present.
|-
|-
|
| style="background:#DCDCDC;" align="center" + |'''Clear cell adenocarcinoma'''
| style="background:#DCDCDC;" align="center" + |'''Clear cell adenocarcinoma'''
|
|
* Clear cells with no nuclei
* Clear cells with no nuclei
|-
|-
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
Line 371: Line 388:
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
|-
|-
|
| rowspan="5" style="background:#DCDCDC;" align="center" + |'''[[Large cell carcinoma of the lung|Large cell carcinoma]]'''<ref name="pmid24221342">{{cite journal |vauthors=Rossi G, Mengoli MC, Cavazza A, Nicoli D, Barbareschi M, Cantaloni C, Papotti M, Tironi A, Graziano P, Paci M, Stefani A, Migaldi M, Sartori G, Pelosi G |title=Large cell carcinoma of the lung: clinically oriented classification integrating immunohistochemistry and molecular biology |journal=Virchows Arch. |volume=464 |issue=1 |pages=61–8 |date=January 2014 |pmid=24221342 |doi=10.1007/s00428-013-1501-6 |url=}}</ref>
| rowspan="5" style="background:#DCDCDC;" align="center" + |'''[[Large cell carcinoma of the lung|Large cell carcinoma]]'''<ref name="pmid24221342">{{cite journal |vauthors=Rossi G, Mengoli MC, Cavazza A, Nicoli D, Barbareschi M, Cantaloni C, Papotti M, Tironi A, Graziano P, Paci M, Stefani A, Migaldi M, Sartori G, Pelosi G |title=Large cell carcinoma of the lung: clinically oriented classification integrating immunohistochemistry and molecular biology |journal=Virchows Arch. |volume=464 |issue=1 |pages=61–8 |date=January 2014 |pmid=24221342 |doi=10.1007/s00428-013-1501-6 |url=}}</ref>
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Basaloid large cell carcinoma of the lung'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Basaloid large cell carcinoma of the lung'''
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* [[Pericardium]]
* [[Pericardium]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Clear cell carcinoma of the lung'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Clear cell carcinoma of the lung'''
|
|
* [[Clear cell|Clear cells]]
* [[Clear cell|Clear cells]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Lymphoepithelioma-like carcinoma of the lung'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Lymphoepithelioma-like carcinoma of the lung'''
|
|
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* [[Amyloid]] deposition
* [[Amyloid]] deposition
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Large-cell lung carcinoma with rhabdoid phenotype'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Large-cell lung carcinoma with rhabdoid phenotype'''
|
|
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* [[Eosinophilic]] inclusions
* [[Eosinophilic]] inclusions
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Mixed type'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Mixed type'''
|
|
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** Spindle cell carcinoma
** Spindle cell carcinoma
|-
|-
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
Line 443: Line 466:
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
|-
|-
|
| rowspan="5" style="background:#DCDCDC;" align="center" + |'''Sarcomatoid carcinoma'''<ref name="pmid24088577">{{cite journal |vauthors=Huang SY, Shen SJ, Li XY |title=Pulmonary sarcomatoid carcinoma: a clinicopathologic study and prognostic analysis of 51 cases |journal=World J Surg Oncol |volume=11 |issue= |pages=252 |date=October 2013 |pmid=24088577 |pmc=3850921 |doi=10.1186/1477-7819-11-252 |url=}}</ref>
| rowspan="5" style="background:#DCDCDC;" align="center" + |'''Sarcomatoid carcinoma'''<ref name="pmid24088577">{{cite journal |vauthors=Huang SY, Shen SJ, Li XY |title=Pulmonary sarcomatoid carcinoma: a clinicopathologic study and prognostic analysis of 51 cases |journal=World J Surg Oncol |volume=11 |issue= |pages=252 |date=October 2013 |pmid=24088577 |pmc=3850921 |doi=10.1186/1477-7819-11-252 |url=}}</ref>
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Carcinosarcoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Carcinosarcoma'''
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* [[Kidney]]
* [[Kidney]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Spindle cell carcinoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Spindle cell carcinoma'''
|
|
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* [[TTF-1]]  
* [[TTF-1]]  
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Giant cell carcinoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Giant cell carcinoma'''
|
|
* Multi- and/or mononucleated tumor [[giant cells]]
* Multi- and/or mononucleated tumor [[giant cells]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Pleomorphic carcinoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Pleomorphic carcinoma'''
|
|
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* Fibrous or myxoid [[stroma]]
* Fibrous or myxoid [[stroma]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Pulmonary blastoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Pulmonary blastoma'''
|
|
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* [[Chromogranin A]]  
* [[Chromogranin A]]  
|-
|-
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
Line 517: Line 546:
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
|-
|-
|
| style="background:#DCDCDC;" align="center" + |'''[[Carcinoid tumor]]'''<ref name="pmid19212636">{{cite journal |vauthors=Dahabreh J, Stathopoulos GP, Koutantos J, Rigatos S |title=Lung carcinoid tumor biology: treatment and survival |journal=Oncol. Rep. |volume=21 |issue=3 |pages=757–60 |date=March 2009 |pmid=19212636 |doi= |url=}}</ref>
| style="background:#DCDCDC;" align="center" + |'''[[Carcinoid tumor]]'''<ref name="pmid19212636">{{cite journal |vauthors=Dahabreh J, Stathopoulos GP, Koutantos J, Rigatos S |title=Lung carcinoid tumor biology: treatment and survival |journal=Oncol. Rep. |volume=21 |issue=3 |pages=757–60 |date=March 2009 |pmid=19212636 |doi= |url=}}</ref>
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Typical carcinoid'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Typical carcinoid'''
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* [[Bone]]
* [[Bone]]
|-
|-
|
| rowspan="3" style="background:#DCDCDC;" align="center" + |'''Salivary gland tumors'''<ref name="pmid23789697">{{cite journal |vauthors=Elnayal A, Moran CA, Fox PS, Mawlawi O, Swisher SG, Marom EM |title=Primary salivary gland-type lung cancer: imaging and clinical predictors of outcome |journal=AJR Am J Roentgenol |volume=201 |issue=1 |pages=W57–63 |date=July 2013 |pmid=23789697 |pmc=3767141 |doi=10.2214/AJR.12.9579 |url=}}</ref>  
| rowspan="3" style="background:#DCDCDC;" align="center" + |'''Salivary gland tumors'''<ref name="pmid23789697">{{cite journal |vauthors=Elnayal A, Moran CA, Fox PS, Mawlawi O, Swisher SG, Marom EM |title=Primary salivary gland-type lung cancer: imaging and clinical predictors of outcome |journal=AJR Am J Roentgenol |volume=201 |issue=1 |pages=W57–63 |date=July 2013 |pmid=23789697 |pmc=3767141 |doi=10.2214/AJR.12.9579 |url=}}</ref>  
| colspan="2" style="background:#DCDCDC;" align="center" + |'''[[Mucoepidermoid carcinoma]]'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''[[Mucoepidermoid carcinoma]]'''
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* [[Brain]]
* [[Brain]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Adenoid cystic carcinoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Adenoid cystic carcinoma'''
|
|
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* [[Adrenal glands]]
* [[Adrenal glands]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Epithelial-myoepithelial carcinoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Epithelial-myoepithelial carcinoma'''
|
|
Line 648: Line 681:
* [[Breast]]
* [[Breast]]
|-
|-
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
Line 658: Line 692:
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
|-
|-
|
| rowspan="3" style="background:#DCDCDC;" align="center" + |'''Preinvasive lesions'''<ref name="pmid11980589">{{cite journal |vauthors=Greenberg AK, Yee H, Rom WN |title=Preneoplastic lesions of the lung |journal=Respir. Res. |volume=3 |issue= |pages=20 |date=2002 |pmid=11980589 |pmc=107849 |doi= |url=}}</ref>  
| rowspan="3" style="background:#DCDCDC;" align="center" + |'''Preinvasive lesions'''<ref name="pmid11980589">{{cite journal |vauthors=Greenberg AK, Yee H, Rom WN |title=Preneoplastic lesions of the lung |journal=Respir. Res. |volume=3 |issue= |pages=20 |date=2002 |pmid=11980589 |pmc=107849 |doi= |url=}}</ref>  
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Squamous carcinoma in situ'''  
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Squamous carcinoma in situ'''  
Line 701: Line 736:
* [[Spleen]]
* [[Spleen]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Atypical adenomatous hyperplasia'''  
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Atypical adenomatous hyperplasia'''  
|
|
Line 732: Line 768:
* Ground-glass opacity  
* Ground-glass opacity  
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia'''
|
|
Line 760: Line 797:
* Thickened [[bronchial]] and bronchiolar walls
* Thickened [[bronchial]] and bronchiolar walls
|-
|-
!
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! colspan="3" style="background:#4479BA; color: #FFFFFF;" align="center" + |Variants of lung carcinoma
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk Factors/Epidemiology
Line 770: Line 808:
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Metastasis
|-
|-
|
| rowspan="8" style="background:#DCDCDC;" align="center" + |'''Mesenchymal tumors'''<ref name="pmid24407922">{{cite journal |vauthors=Koenigkam-Santos M, Sommer G, Puderbach M, Safi S, Schnabel PA, Kauczor HU, Heussel CP |title=Primary intrathoracic malignant mesenchymal tumours: computed tomography features of a rare group of chest neoplasms |journal=Insights Imaging |volume=5 |issue=2 |pages=237–44 |date=April 2014 |pmid=24407922 |pmc=3999366 |doi=10.1007/s13244-013-0306-0 |url=}}</ref>  
| rowspan="8" style="background:#DCDCDC;" align="center" + |'''Mesenchymal tumors'''<ref name="pmid24407922">{{cite journal |vauthors=Koenigkam-Santos M, Sommer G, Puderbach M, Safi S, Schnabel PA, Kauczor HU, Heussel CP |title=Primary intrathoracic malignant mesenchymal tumours: computed tomography features of a rare group of chest neoplasms |journal=Insights Imaging |volume=5 |issue=2 |pages=237–44 |date=April 2014 |pmid=24407922 |pmc=3999366 |doi=10.1007/s13244-013-0306-0 |url=}}</ref>  
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Epithelioid haemangioendothelioma / Angiosarcoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Epithelioid haemangioendothelioma / Angiosarcoma'''
Line 809: Line 848:
* [[Soft tissue]]
* [[Soft tissue]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Pleuropulmonary blastoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Pleuropulmonary blastoma'''
|
|
Line 847: Line 887:
* [[Pancreas]]
* [[Pancreas]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Chondroma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Chondroma'''
|
|
Line 876: Line 917:
* [[Benign tumor|Benign]] in nature
* [[Benign tumor|Benign]] in nature
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Congenital peribronchial myofibroblastic tumor'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Congenital peribronchial myofibroblastic tumor'''
|
|
Line 909: Line 951:
* Rare
* Rare
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Diffuse pulmonary lymphangiomatosis'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Diffuse pulmonary lymphangiomatosis'''
|
|
Line 941: Line 984:
* Bone
* Bone
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Inflammatory myofibroblastic tumor'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Inflammatory myofibroblastic tumor'''
|
|
Line 983: Line 1,027:
* Rare
* Rare
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Pulmonary artery sarcoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Pulmonary artery sarcoma'''
|
|
Line 1,022: Line 1,067:
* [[Mediastinum]]
* [[Mediastinum]]
|-
|-
|
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Pulmonary vein sarcoma'''
| colspan="2" style="background:#DCDCDC;" align="center" + |'''Pulmonary vein sarcoma'''
|
|

Revision as of 21:32, 24 January 2019

Lung Mass Microchapters

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Maria Fernanda Villarreal, M.D. [2], Eiman Ghaffarpasand, M.D. [3]

Overview

Lung mass may be differentiated according to clinical features, laboratory findings, imaging features, histological features, and genetic studies, from other diseases that cause chronic cough, hemoptysis, and weight loss.

Differential Diagnosis

  • The table below summarizes the findings that differentiate lung masses according to clinical features, laboratory findings, imaging features, histological features, and genetic studies.[1][2]
  • Abrevations: HPV: human papillomavirus; CEA: Carcino embryogenic antigen; TTF1: Thyroid transcription factor-1; EMA: Epithelial membrane antigen; CK: Cyto keratin; CD: Cluster differentiation; NCAM: Neural Cell Differentiation Molecule; MMP's: Mettaloprotineases matrix; GFAP: Glial fibrocilliary acid protein
Type Category Disease Risk/Epidemiology Pleuripotent cells Topography Gross Histology Immunohistochemistry Imaging Metastasis
Benign Papilloma[3] Squamous cell papilloma
  • HPV 6 and 11
  • Men
  • Median age of diagnosis is 54 years
  • Endobronchial
  • Cauliflower-like lesions
  • Tan-white soft to semifirm protrutions
  • Loose fibrovascular core
  • Stratified squamous epithelium
  • Acanthosis
  • Binucleate forms and perinuclear halos
  • Koilocytosis
  • N/A
  • Well circumscribed
  • Homogenous
  • Non-calcified
  • Solitary mass
  • N/A
Glandular papilloma
  • Rare
  • Mean age of diagnosis is 68 years
  • Endobronchial
  • White to tan endobronchial polyps that measure from 0.7-1.5 cm
  • N/A
  • Well circumscribed
  • Homogenous
  • Non-calcified
  • Solitary mass
  • N/A
Adenoma[4] Alveolar adenoma
  • Mean age of diagnosis is 53 years
  • Female predominance
  • All lung lobes
  • Lower lobes
  • Hilar
  • 0.7-6.0 cm
  • Well demarcated smooth
  • Lobulated, multicystic
  • Soft to firm
  • Pale yellow to tan cut surfaces
  • Well circumscribed
  • Homogenous
  • Non-calcified
  • Solitary mass
  • N/A
Papillary adenoma[5]
  • Mean age of diagnosis is 32 years
  • Male predominance
  • Bronchioloalveolar cell
  • No lobar predilection
  • Involves alveolar parenchyma
  • Well defined
  • Encapsulated
  • Soft, spongy to firm mass
  • Granular gray white/ brown
  • 1.0- 4.0 cm
  • Incidental finding
  • N/A
Mucinous cystadenoma
  • No sex predilection
  • Mean age of diagnosis is 52 years
  • Central
  • White-pink to tan
  • Smooth and shiny tumors
  • Gelatinous mucoid solid core
  • 0.7-7.5 cm
  • Numerous mucin-filled cystic spaces
  • Non-dilated microacini, glands, tubules and papillae
  • Coin lesion
  • Air-meniscus sign
  • N/A
Malignant Lung Tumors[6]
Variants of lung carcinoma Risk Factors/Epidemiology Pleuripotent cell Topography Gross Histology Immunohistochemistry Imaging Metastasis
Squamous cell carcinoma (SCC)[7] Papillary
  • Epithelial cells
  • Central
  • Exophytic
  • Intra-epithelial
  • Without invasion
Clear cell
Basaloid
  • Peripheral palisading of nuclei.
  • Poor differentiation
Small cell carcinoma[8]
  • Bronchial precursor cell
  • Peripheral
  • White-tan, soft, friable perihilar masses
  • Extensive necrosis
  • 5% peripheral coin lesions
  • Sheet-like growth
  • Nesting
  • Trabeculae
  • Peripheral palisading
  • Rosette formation
  • High mitotic rate
  • Bone marrow
  • Liver
Adenocarcinoma[9][10][11] Acinar adenocarcinoma
  • Columnar cells of bronchioles
  • Peripheral
  • Single or multiple lesions
  • Different in size
  • Peripheral distribution
  • Gray-white central fibrosis
  • Pleural puckering
  • Anthracotic pigmentation
  • Lobulated or ill defined edges
  • Irregular-shaped glands
  • Malignant cells:
    • Hyperchromatic nuclei
    • Fibroblastic stroma
  • Peripheral nodules under 4.0 cm in size
  • Central location as a hilar or perihilar mass
  • Rarely show cavitations.
  • Hilar adenopathy
  • Adenocarcinomas account for the majority of small peripheral cancers identified radiologically.
Aerogenous spread is characteristic
  • Brain
  • Bone
  • Adrenal glands
  • Liver
  • Kidney
  • Gastrointestinal Tract
Papillary adenocarcinoma
Bronchio-alveolar carcinoma Non-mucinous
Mucinous
  • Low grade differentiation
  • Composed of:
    • Tall columnar cells
    • Basal nuclei
    • Pale cytoplasm resembling goblet cells
    • Varying amounts of cytoplasmic mucin
  • Cytologic atypia
Mixed non-mucinous and mucinous or indeterminate
  • Mixed type of cells
  • Low to high grade differentiated cells.
Solid adenocarcinoma with mucin production Fetal adenocarcinoma
Mucinous (“colloid”) carcinoma
Mucinous cystadenocarcinoma
Signet ring adenocarcinoma
  • Focal
  • Cells with nuclei displaced to sides
  • Components of other cells are present.
Clear cell adenocarcinoma
  • Clear cells with no nuclei
Variants of lung carcinoma Risk Factors/Epidemiology Pleuripotent cell Topography Gross Histology Immunohistochemistry Imaging Metastasis
Large cell carcinoma[12] Basaloid large cell carcinoma of the lung
  • Approximately 10% of lung cancers
  • Smoking
  • Soft, pink-tan tumor
  • Invasive growth pattern
  • Peripheral palisading
  • Small, monomorphic, cuboidal fusiform
  • Large, peripheral masses
Clear cell carcinoma of the lung
Lymphoepithelioma-like carcinoma of the lung
Large-cell lung carcinoma with rhabdoid phenotype
Mixed type
Variants of lung carcinoma Risk Factors/Epidemiology Pleuripotent cell Topography Gross Histology Immunohistochemistry Imaging Metastasis
Sarcomatoid carcinoma[13] Carcinosarcoma
  • Central or peripheral
  • Upper lobes
  • No specific imaging features 
Spindle cell carcinoma
  • Only spindle shaped tumor cells
  • Lymphoplasmacytic infiltrates
Giant cell carcinoma
Pleomorphic carcinoma
Pulmonary blastoma
Variants of lung carcinoma Risk Factors/Epidemiology Pleuripotent cell Topography Gross Histology Immunohistochemistry Imaging Metastasis
Carcinoid tumor[14] Typical carcinoid

Atypical carcinoid

  • Most common in males
  • Mean age of diagnosis 45
  • Atypical carcinoid is more commonly peripheral
  • Firm, well demarcated, tan to yellow tumors
  • Uniform polygonal cells
  • Nuclear atypia
  • Pleomorphism
  • The most common patterns are the organoid and trabecular
  • Highly vascularized fibrovascular stroma
  • Focal necrosis
Salivary gland tumors[15] Mucoepidermoid carcinoma
  • Most patients presents in the third and fourth decade
  • Constitutes of less than 1% tumor
  • No association with cigarette smoking or other risk factors
  • Primitive cells of tracheobronchial origin
  • Bronchial glands
  • Ranging in size from 0.5-6 cm
  • Soft, polypoid, and pink-tan in colour
  • High-grade lesions are infiltrative
  • Well-circumscribed oval or lobulated mass
  • Calcifications
  • Post-obstructive pneumonic infiltrates
Adenoid cystic carcinoma
  • Constitutes less than 1% of all lung tumors
  • Most commonly seen in fourth and fifth decades of life
  • Primitive cells of tracheobronchial origin
  • Gray-white or tan polypoid lesions
  • Size ranges from 1–4 cm
  • Infiltrative margins
  • Invades other cell layers
  • Heterogeneous cellularity
  • Cribriform pattern
  • Perineural invasion
  • Well circumscribed
  • Nodule
Epithelial-myoepithelial carcinoma
  • Age ranges from 33 to 71 years
  • No association with smoking
  • Endobronchial
  • Solid to gelatinous in texture
  • White to gray in colour
Variants of lung carcinoma Risk Factors/Epidemiology Pleuripotent cell Topography Gross Histology Immunohistochemistry Imaging Metastasis
Preinvasive lesions[16] Squamous carcinoma in situ
  • Most commonly seen in fifth or sixth decades
  • Mostly seen in women
  • Basal cells of squamous epithelium
  • Focal or multi-focal plaque-like greyish lesions
  • Nonspecific erythema
  • Even nodular or polypoid lesions
  • Micropapillomatosis
  • Cauliflower like
  • Mosaic pattern
Atypical adenomatous hyperplasia
  • Multiple grey to yellow foci
  • 1mm to 10mm in size
  • Typically not visualized on radiographs
  • Small non-solid nodules
  • Ground-glass opacity
Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia
  • Endobronchial
  • Early lesions are:
    • Small, gray-white nodules
    • Resembling ‘miliary bodies’
  • Larger carcinoid tumors are:
    • Firm
    • Homogeneous
    • Well-defined
    • Grey or yellow-white masses
  • Mosaic pattern of air trapping
  • Sometimes with nodules
  • Thickened bronchial and bronchiolar walls
Variants of lung carcinoma Risk Factors/Epidemiology Pleuripotent cell Topography Gross Histology Immunohistochemistry Imaging Metastasis
Mesenchymal tumors[17] Epithelioid haemangioendothelioma / Angiosarcoma
  • Caucasian
  • 80% are women
  • Endothelial cells
  • 0.3-2.0 cm circumscribed mass
  • Gray-white or gray-tan firm tissue
  • Yellow flecks
  • Central calcifications
  • Cut surface has a cartilaginous consistency
Pleuropulmonary blastoma
  • Most common in children
  • Median age of diagnosis is 2 years
  • Purely cystic
  • Thin-walled
  • Rarely solid
  • Firm to gelatinous
  • Upto 15 cm
  • Unilateral
  • Localized airfilled cysts
  • Septal thickening or an intracystic mass
Chondroma
  • Young women
  • Capsulated lobules
  • Hypocellular
  • Features of malignancy are absent
  • N/A
  • Multiple
  • Well circumscribed lesions
  • “Pop-corn” calcifications
Congenital peribronchial myofibroblastic tumor
  • Along the bronchi
  • 5-10 cm
  • Well-circumscribed
  • Non-encapsulated
  • Smooth or multinodular surface
  • The cut surface has a tann-grey to yellow-tan fleshy appearance
  • Hemorrhage
  • Necrosis
  • Well circumscribed
  • Opaque hemithorax
  • Heterogeneous mass
  • Rare
Diffuse pulmonary lymphangiomatosis
  • Children
  • Young adults of both sexes
  • Prominence of the bronchovascular bundles along
  • Anastomosing endothelial-lined cells along lymphatic routes
  • Increased interstitial markings
  • Skin
  • Bone
Inflammatory myofibroblastic tumor
  • Localized to bronchi
  • Solitary
  • Round rubbery masses
  • Yellowish-gray discoloration
  • Average size of 3.0 cm
  • Non-encapculated
  • Calcifications
  • No local invasion
  • Solitary mass
  • Regular borders
  • Spiculated appearance
  • Accompanied by
  • Rare
Pulmonary artery sarcoma
  • Mucoid or gelatinous clots filling vascular lumens
  • The cut surface may show
    • Firm fibrotic areas
    • Bony/gritty or chondromyxoid foci
    • Hemorrhage and necrosis are common in high-grade tumors
  • Spindle cells in
    • A myxoid background
    • Collagenized stroma
    • Recanalized thrombi
Pulmonary vein sarcoma
  • Most common in women
  • Mean age of diagnosis is 49
  • Fleshy-tan tumor
  • Can occlude the lumen of the involved vessel
  • 3.0- 20.0 cm
  • Invasion of wall of the vein
  • N/A

References

  1. Erasmus JJ, Connolly JE, McAdams HP, Roggli VL (2000). "Solitary pulmonary nodules: Part I. Morphologic evaluation for differentiation of benign and malignant lesions". Radiographics. 20 (1): 43–58. doi:10.1148/radiographics.20.1.g00ja0343. PMID 10682770.
  2. Gümüştaş S, Inan N, Akansel G, Ciftçi E, Demirci A, Ozkara SK (June 2012). "Differentiation of malignant and benign lung lesions with diffusion-weighted MR imaging". Radiol Oncol. 46 (2): 106–13. doi:10.2478/v10019-012-0021-3. PMC 3472932. PMID 23077446.
  3. Maxwell RJ, Gibbons JR, O'Hara MD (January 1985). "Solitary squamous papilloma of the bronchus". Thorax. 40 (1): 68–71. PMC 459982. PMID 3969658.
  4. Shiota Y, Matsumoto H, Sasaki N, Taniyama K, Hashimoto S, Sueishi K (1998). "Solitary bronchioloalveolar adenoma of the lung". Respiration. 65 (6): 483–5. doi:10.1159/000029319. PMID 9817965.
  5. Kanchustambham V, Saladi S, Patolia S, Mahmoud Assaf S, Stoeckel D (March 2017). "A Rare Case of a Benign Primary Pleomorphic Adenoma of the Lung". Cureus. 9 (3): e1069. doi:10.7759/cureus.1069. PMC 5375953. PMID 28409070.
  6. Kelley LC, Puette M, Langheinrich KA, King B (November 1994). "Bovine pulmonary blastomas: histomorphologic description and immunohistochemistry". Vet. Pathol. 31 (6): 658–62. doi:10.1177/030098589403100605. PMID 7863581.
  7. Roth E, Smidt D (January 1970). "[Studies on early ejaculate collection using electroejaculation in German improved land-swines and Goettinger miniature pigs]". Berl. Munch. Tierarztl. Wochenschr. (in German). 83 (1): 7–11. PMID 5528918.
  8. Jackman DM, Johnson BE (2005). "Small-cell lung cancer". Lancet. 366 (9494): 1385–96. doi:10.1016/S0140-6736(05)67569-1. PMID 16226617.
  9. Mitchell, Richard Sheppard; Kumar, Vinay; Abbas, Abul K.; Fausto, Nelson. "Chapter 13, box on morphology of adenocarcinoma". Robbins Basic Pathology (8th ed.). Philadelphia: Saunders. ISBN 1-4160-2973-7.
  10. Soda M, Choi YL, Enomoto M, Takada S, Yamashita Y, Ishikawa S; et al. (2007). "Identification of the transforming EML4-ALK fusion gene in non-small-cell lung cancer". Nature. 448 (7153): 561–6. doi:10.1038/nature05945. PMID 17625570.
  11. Adenocarcinoma of the lung. Librepathology 2015. http://librepathology.org/wiki/index.php/File:Adenocarcinoma_%283950819000%29.jpg
  12. Rossi G, Mengoli MC, Cavazza A, Nicoli D, Barbareschi M, Cantaloni C, Papotti M, Tironi A, Graziano P, Paci M, Stefani A, Migaldi M, Sartori G, Pelosi G (January 2014). "Large cell carcinoma of the lung: clinically oriented classification integrating immunohistochemistry and molecular biology". Virchows Arch. 464 (1): 61–8. doi:10.1007/s00428-013-1501-6. PMID 24221342.
  13. Huang SY, Shen SJ, Li XY (October 2013). "Pulmonary sarcomatoid carcinoma: a clinicopathologic study and prognostic analysis of 51 cases". World J Surg Oncol. 11: 252. doi:10.1186/1477-7819-11-252. PMC 3850921. PMID 24088577.
  14. Dahabreh J, Stathopoulos GP, Koutantos J, Rigatos S (March 2009). "Lung carcinoid tumor biology: treatment and survival". Oncol. Rep. 21 (3): 757–60. PMID 19212636.
  15. Elnayal A, Moran CA, Fox PS, Mawlawi O, Swisher SG, Marom EM (July 2013). "Primary salivary gland-type lung cancer: imaging and clinical predictors of outcome". AJR Am J Roentgenol. 201 (1): W57–63. doi:10.2214/AJR.12.9579. PMC 3767141. PMID 23789697.
  16. Greenberg AK, Yee H, Rom WN (2002). "Preneoplastic lesions of the lung". Respir. Res. 3: 20. PMC 107849. PMID 11980589.
  17. Koenigkam-Santos M, Sommer G, Puderbach M, Safi S, Schnabel PA, Kauczor HU, Heussel CP (April 2014). "Primary intrathoracic malignant mesenchymal tumours: computed tomography features of a rare group of chest neoplasms". Insights Imaging. 5 (2): 237–44. doi:10.1007/s13244-013-0306-0. PMC 3999366. PMID 24407922.