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DIFFERENTIAL DIAGNOSIS
Diffuse oncocytosis in old ages
Nodular oncocytic hyperplasia
Warthin’s tumor
Oncocytic cystadenoma
Foci of oncocytosis in mixed tumor (myxochondroid areas, myoepithelial proliferation)
Foci of oncocytosis in mucepidermoid Carcinoma (positive mucicarmine staining)
Clear cell carcinomas (infiltrative pattern, cell pleomorphism, lack of PTAH positive mitochondria)
Clear cell mucoepidermoid carcinoma
Clear cell acinic cell adenocarcinoma
Clear cell adenocarcinoma
Epithelial-myoepithelial carcinoma
Metastatic renal cell carcinoma
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Slide 67
