A) Gross:
Typically appears as a well-circumscribed, homogeneous, tan tumor.
B ) Microscopy :
Chromophobe RCC with admixture of classic (chromophobic) and eosinophilic cells. Characteristic features include distinct cytoplasmic borders, perinuclear halos, and nuclear “raisins.” The classic variant is notable for its “plant cell” appearance.
C) Special staining :
Chromophobe RCC stains positive for Hale colloidal iron.
