Difference between revisions of "Non-small cell lung carcinoma"
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It can be understood as a synonym for '''large cell carcinoma''' which is umbrella term that includes [[squamous cell carcinoma of lung]] and [[adenocarcinoma of the lung]]. | It can be understood as a synonym for '''large cell carcinoma''' which is umbrella term that includes [[squamous cell carcinoma of lung]] and [[adenocarcinoma of the lung]]. | ||
==General== | |||
*Use of this diagnosis is should be limited. | |||
**It is preferable to be more specific, i.e. call ''adenocarcinoma'' or ''squamous cell carcinoma''. | |||
==Microscopic== | ==Microscopic== | ||
Revision as of 00:56, 3 May 2013
Non-small cell lung carcinoma, abbreviated NSCLC, is a malignant epithelial neoplasm that is not small cell carcinoma of the lung.
It can be understood as a synonym for large cell carcinoma which is umbrella term that includes squamous cell carcinoma of lung and adenocarcinoma of the lung.
General
- Use of this diagnosis is should be limited.
- It is preferable to be more specific, i.e. call adenocarcinoma or squamous cell carcinoma.
Microscopic
Features:
- Large cells with abundant cytoplasm.
- +/-Nucleoli.
- No stippled chromatin.
DDx:
IHC
Sloan-Kettering algorithm - Rekhtman et al.:[1]
| TTF-1\p63 | p63 -ve (0% of cells) | p63 +ve <50% of cells | p63 +ve >=50% of cells |
|---|---|---|---|
| TTF-1 +ve >=50% of cells | Adenocarcinoma | Adenocarcinoma | Adenocarcinoma |
| TTF-1 +ve <50% of cells | Adenocarcinoma | Adenocarcinoma | Squamous carcinoma |
| TTF-1 -ve (0% of cells) | Adenocarcinoma | CK5/6 to determine | Squamous carcinoma |
See also
References
- ↑ Rekhtman, N.; Ang, DC.; Sima, CS.; Travis, WD.; Moreira, AL. (Oct 2011). "Immunohistochemical algorithm for differentiation of lung adenocarcinoma and squamous cell carcinoma based on large series of whole-tissue sections with validation in small specimens.". Mod Pathol 24 (10): 1348-59. doi:10.1038/modpathol.2011.92. PMID 21623384.