Table 2: CD133 expression in renal Epithelial tumors.

Positive/total (%)Score 0Score 1+Score 2+Score 3+Peritumor tubules

Clear cell papillary RCC11/11 (100%)002911/11
Clear cell RCC2/20 (10%)1820016/16
Papillary RCC8/15 (53%)751213/13
Chromophobe RCC1/7 (14%)61005/5
Oncocytomas1/5 (20%)41004/4
Wilms’ tumor4/14 (28%)040013/13

RCC: renal cell carcinoma.