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Difference between revisions of "Squamous cell carcinoma"
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→Basaloid squamous cell carcinoma: re-work
(→Basaloid squamous cell carcinoma: re-work) |
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==Basaloid squamous cell carcinoma== | ==Basaloid squamous cell carcinoma== | ||
:''Should '''not''' be confused with [[basosquamous carcinoma]].'' | |||
===General=== | |||
*May mimic ''[[adenoid cystic carcinoma]]''. | *May mimic ''[[adenoid cystic carcinoma]]''. | ||
*Classically base of tongue.<ref>URL: [http://www.biomedcentral.com/1471-2407/6/146 http://www.biomedcentral.com/1471-2407/6/146]. Accessed on: March 9, 2010.</ref> | *Classically base of tongue.<ref>URL: [http://www.biomedcentral.com/1471-2407/6/146 http://www.biomedcentral.com/1471-2407/6/146]. Accessed on: March 9, 2010.</ref> | ||
*Typically poor prognosis. | *Typically poor prognosis. | ||
===Microscopic=== | |||
Features: | Features: | ||
* | *"Basaloid" cells - "blue" at low power. | ||
**Nests. | |||
***Basal pallisading. | |||
*+/-Keratinization - useful. | |||
*+/-Squamous dysplasia in overlying skin. | |||
*Conventional squamous cell carcinoma. | |||
DDx: | DDx: | ||
*Neuroendocrine tumour. | *[[Basal cell carcinoma]]. | ||
*[[Basosquamous carcinoma]]. | |||
*[[Neuroendocrine tumour]]. | |||
==Lymphoepithelial (squamous cell) carcinoma== | ==Lymphoepithelial (squamous cell) carcinoma== | ||