Lung tumours: Difference between revisions

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*Adenocarcinoma is the most common (primary lung cancer).<ref>{{cite journal |author=Lutschg JH |title=Lung cancer |journal=N. Engl. J. Med. |volume=360 |issue=1 |pages=87-8; author reply 88 |year=2009 |month=January |pmid=19118313 |doi=10.1056/NEJMc082208 |url=}}</ref>
*Adenocarcinoma is the most common (primary lung cancer).<ref>{{cite journal |author=Lutschg JH |title=Lung cancer |journal=N. Engl. J. Med. |volume=360 |issue=1 |pages=87-8; author reply 88 |year=2009 |month=January |pmid=19118313 |doi=10.1056/NEJMc082208 |url=}}</ref>
*Adenocarcinoma is the non-smoker tumour - SCLC and squamous are more strongly associated with [[smoking]].
*Adenocarcinoma is the non-smoker tumour - SCLC and squamous are more strongly associated with [[smoking]].
Children:
*Most common lung tumour in children: metastasis (80-85% of lung tumours in children<ref name=pmid>{{Cite journal  | last1 = Dishop | first1 = MK. | last2 = Kuruvilla | first2 = S. | title = Primary and metastatic lung tumors in the pediatric population: a review and 25-year experience at a large children's hospital. | journal = Arch Pathol Lab Med | volume = 132 | issue = 7 | pages = 1079-103 | month = Jul | year = 2008 | doi = 10.1043/1543-2165(2008)132[1079:PAMLTI]2.0.CO;2 | PMID = 18605764 }}</ref>
**Most common primary tumours in children: [[inflammatory myofibroblastic tumour]], [[pleuropulmonary blastoma]], [[lung carcinoid]].<ref name=pmid26971789>{{Cite journal  | last1 = Giuseppucci | first1 = C. | last2 = Reusmann | first2 = A. | last3 = Giubergia | first3 = V. | last4 = Barrias | first4 = C. | last5 = Krüger | first5 = A. | last6 = Siminovich | first6 = M. | last7 = Botto | first7 = H. | last8 = Cadario | first8 = M. | last9 = Boglione | first9 = M. | title = Primary lung tumors in children: 24 years of experience at a referral center. | journal = Pediatr Surg Int | volume = 32 | issue = 5 | pages = 451-7 | month = May | year = 2016 | doi = 10.1007/s00383-016-3884-3 | PMID = 26971789 }}</ref>


===Distribution===
===Distribution===
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Note:
Note:
*CD56 - cytoplasmic.<ref>URL: [http://jcp.bmjjournals.com/content/58/9/978.full http://jcp.bmjjournals.com/content/58/9/978.full]. Accessed: 11 February 2010.</ref>
*CD56 - cytoplasmic.<ref>URL: [http://jcp.bmjjournals.com/content/58/9/978.full http://jcp.bmjjournals.com/content/58/9/978.full]. Accessed: 11 February 2010.</ref>
===Adenocarcinoma===
*[[TTF-1]] +ve.
*[[Napsin]] +ve - sensitive.<ref name=pmid22288963>{{cite journal |author=Turner BM, Cagle PT,Fukuoka J, ''et al'' |title=Napsin A, a New Marker for Lung Adenocarcinoma, Is Complementary and More Sensitive and Specific Than Thyroid Transcription Factor 1 in the Differential Diagnosis of Primary Pulmonary Carcinoma: Evaluation of 1674 Cases by Tissue Microarray |journal=Arch Pathol Lab Med. |volume=136 |issue=10 |pages=163-71 |year=2012 |month=February|pmid=22288963 |doi: 10.5858/arpa.2011-0320-OA|url=}}</ref>
*[[CK7]] +ve, [[CK20]] -ve.


===Squamous cell carcinoma===
===Squamous cell carcinoma===
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Note:
Note:
*TTF-1 - should be nuclear staining; cytoplasmic staining is non-specific.<ref name=pmid15861215>{{cite journal |author=Compérat E, Zhang F, Perrotin C, ''et al.'' |title=Variable sensitivity and specificity of TTF-1 antibodies in lung metastatic adenocarcinoma of colorectal origin |journal=Mod. Pathol. |volume=18 |issue=10 |pages=1371–6 |year=2005 |month=October |pmid=15861215 |doi=10.1038/modpathol.3800422 |url=http://www.nature.com/modpathol/journal/v18/n10/full/3800422a.html}}</ref>
*TTF-1 - should be nuclear staining; cytoplasmic staining is non-specific.<ref name=pmid15861215>{{cite journal |author=Compérat E, Zhang F, Perrotin C, ''et al.'' |title=Variable sensitivity and specificity of TTF-1 antibodies in lung metastatic adenocarcinoma of colorectal origin |journal=Mod. Pathol. |volume=18 |issue=10 |pages=1371–6 |year=2005 |month=October |pmid=15861215 |doi=10.1038/modpathol.3800422 |url=http://www.nature.com/modpathol/journal/v18/n10/full/3800422a.html}}</ref>
**Image: [http://commons.wikimedia.org/w/index.php?title=File:Lung_adenocarcinoma_-_TTF-1_-_high_mag.jpg Nuclear staining with TTF-1 in a metastatic lung adenocarcinoma (WC)].
**Image: [http://commons.wikimedia.org/w/index.php?title=File:Lung_adenocarcinoma_-_TTF-1_-_high_mag.jpg Nuclear staining with TTF-1 in a primary lung adenocarcinoma (WC)].


==Neuroendocrine tumours==
==Neuroendocrine tumours==
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=Benign tumours=
=Benign tumours=
==Pulmonary apical cap==
{{Main|Pulmonary apical cap}}
A lesion that can mimic a lung neoplasm.
==Pulmonary carcinoid tumourlet==
==Pulmonary carcinoid tumourlet==
*[[AKA]] ''carcinoid tumourlet''.
*[[AKA]] ''carcinoid tumourlet''.
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*[[AKA]] ''clear cell sugar tumour''.
*[[AKA]] ''clear cell sugar tumour''.
**Abbreviated ''CCST''.
**Abbreviated ''CCST''.
===General===
{{Main|Clear cell sugar tumour of the lung}}
*A [[PEComa]].
*Benign.<ref name=pmid19119463>{{Cite journal  | last1 = Kim | first1 = WJ. | last2 = Kim | first2 = SR. | last3 = Choe | first3 = YH. | last4 = Lee | first4 = KY. | last5 = Park | first5 = SJ. | last6 = Lee | first6 = HB. | last7 = Chung | first7 = MJ. | last8 = Jin | first8 = GY. | last9 = Lee | first9 = YC. | title = Clear cell "sugar" tumor of the lung: a well-enhanced mass with an early washout pattern on dynamic contrast-enhanced computed tomography. | journal = J Korean Med Sci | volume = 23 | issue = 6 | pages = 1121-4 | month = Dec | year = 2008 | doi = 10.3346/jkms.2008.23.6.1121 | PMID = 19119463 | PMC = 2610653 | URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2610653/?tool=pubmed }}</ref>
 
===Microscopic===
Features:<ref name=pmid19119463/>
*Sheets or trabeculae.
*Irregular epithelioid cells with:
**Focally clear cytoplasm.
 
Images:
*[http://www.surgicalpathologyatlas.com/glfusion/mediagallery/media.php?f=0&sort=0&s=20080802170404452 Clear cell sugar tumour of the lung (surgicalpathologyatlas.com)].
*[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2610653/figure/F3/ CCST (nih.gov)].<ref name=pmid19119463/>
 
===IHC===
*HMB-45 +ve (nuclear & cytoplasmic).


=See also=
=See also=