A case of chromophobe cell renal carcinoma

: We report a case of chromophobe cell renal carcinoma. A 27-year-old male suffered from right flank pain and gross hematuria. Drip infusion pyelography and ultrasonographic examination revealed a right renal mass and it was diagnosed as renal oncocytoma by needle biopsy of the right kidney. He was referred to our hospital for the operation and right radical nephrectomy was performed. The cut surface of the tumor was beige in color. The cytoplasm of the tumor cells stained positively for colloidal iron and showed a negative reaction for Vimentin. From these results, this tumor was given a diagnosis of chromophobe cell renal carcinoma.