Reviewers: Fatima Aly, M.D. (see Reviewers page)
Revised: 1 February 2013, last major update August 2011
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.
● Classification difficult because most tumors arise from or differentiate to epithelial or myoepithelial cells, which can undergo various metaplastic changes (oncocytic, chondroid, squamous, sebaceous)
● Subtypes are clustered based on expression of myoepithelial, luminal and basal cell phenotypes (Mod Pathol 2004;17:803)
● WHO classification: stresses distinction between benign and malignant
Schematic of adenomas
End of Salivary Glands > Epithelial/myoepithelial tumors > Classification
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