[A case of ipsilateral pelvic transitional cell carcinoma and renal cell carcinoma]

A case of ipsilateral pelvic transitional cell carcinoma and renal cell carcinoma (RCC), in an 82-year-old male is presented. We diagnosed this case as pelvic tumor preoperatively with retrograde pyelography and computed tomography. Operatively renal tumor was found and diagnosed as RCC. We thought it difficult to diagnose as RCC preoperatively. To date, this case is the 13th reported case diagnosed clinically.