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Difference between revisions of "Carcinoma ex pleomorphic adenoma"
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Carcinoma ex pleomorphic adenoma (view source)
Revision as of 17:11, 23 November 2013
, 17:11, 23 November 2013→Microscopic: tweak
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==Microscopic== | ==Microscopic== | ||
Features: | Features: | ||
*Cells with cytologic features of malignancy. | *Cells with cytologic features of malignancy - '''key feature'''. | ||
*Architecture (any of the following): | *Architecture (any of the following): | ||
**Glands. | **Glands. | ||
| Line 21: | Line 21: | ||
Architectural patterns: | Architectural patterns: | ||
*Ductal carcinoma NOS (arising from ductal cells) - most common pattern for Ca ex PA. | *[[Ductal carcinoma]] NOS (arising from ductal cells) - most common pattern for Ca ex PA. | ||
*Myoepithelial | *Myoepithelial carcinoma NOS (arising from myoepithelial cells). | ||
*"Named carcinoma": | *"Named carcinoma": | ||
**Salivary duct carcinoma - second most common pattern for Ca ex PA. | **[[Salivary duct carcinoma]] - second most common pattern for Ca ex PA. | ||
**Mucoepidermoid carcinoma. | **[[Mucoepidermoid carcinoma]]. | ||
**Adenoid cystic carcinoma. | **[[Adenoid cystic carcinoma]]. | ||
Note: | Note: | ||
*Often adenocarcinoma-like. | *Often adenocarcinoma-like. | ||
*Myoepithelial cells may be clear cells. | *Myoepithelial cells may be clear cells. | ||
DDx: | |||
*[[Salivary ducat carcinoma]]. | |||
*[[Mucoepidermoid carcinoma]]. | |||
*[[Adenoid cystic carcinoma]]. | |||
*[[Pleomorphic adenoma]]. | |||
===Subclassification=== | ===Subclassification=== | ||