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Difference between revisions of "Salivary glands"
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→Sebaceous carcinoma: +EMCa
(→Adenoid cystic carcinoma: more) |
(→Sebaceous carcinoma: +EMCa) |
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| Line 654: | Line 654: | ||
#Minimally invasive <1.5 mm beyond the capsule. | #Minimally invasive <1.5 mm beyond the capsule. | ||
#Widely invasive >=1.5 mm beyond the capsule. | #Widely invasive >=1.5 mm beyond the capsule. | ||
==Epithelial-myoepithelial carcinoma== | |||
*Abbreviated ''EMCa''. | |||
===General=== | |||
*Rare. | |||
*Female:male = 2:1. | |||
*Usu. old 50-60s. | |||
*Usu. parotid gland. | |||
*Prognosis: usu. good. | |||
===Microscopic=== | |||
Features: | |||
*Biphasic tumour: | |||
*#Epithelial layer. | |||
*#Myoepithelial layer - '''key feature'''. | |||
*Architecture: variable (solid, cystic, tubular, papillary). | |||
*+/-Spindle cells. | |||
*Basement membrane-like material; may mimic adenoid cystic carcinoma. | |||
DDx: | |||
*Adenoid cystic carcinoma. | |||
*Pleomorphic adenoma. | |||
Notes: | |||
*Usu. few mitoses. | |||
Images: | |||
*[http://www.pathologyimagesinc.com/sgt-cytopath/epith-myoepith-ca/cytopathology/images-features/emc-rev-cyto1-18.jpg EMCa (pathologyimagesinc.com)].<ref>{{cite web |url=http://www.pathologyimagesinc.com/sgt-cytopath/epith-myoepith-ca/cytopathology/fs-emc-cytopath-feat.html |title=Cytopathologic Features of | |||
Epithelial-myoepithelial Carcinoma |last1= |first1= |last2= |first2= |date= |work= |publisher= |accessdate=January 18, 2011}}</ref> | |||
==Sebaceous carcinoma== | ==Sebaceous carcinoma== | ||
*Arises from ''sebaceous glands'' | *Arises from ''sebaceous glands'' | ||
*Sebaceous glands are serous glands and clear on H&E. | *Sebaceous glands are serous glands and clear on H&E. | ||
*Uncommon. (???) | |||
=See also= | =See also= | ||