Abstract
An unusual case of 2 concurrent primary renal tumors within the same kidney is reported. A 70-year-old woman presented with gross hematuria when she was in the hospital for cerebral infarction. Excretory urography revealed a marked expansion of the right kindey with no renal function. CT scan showed a mass arising from the right kidney, the hydronephrotic right reanl pelvis, and a mass in the lower right ureter. Selevtive renal angiogram showed marked neovascularity of the mass. There was an encasement of the intrarenal artery to the lower pole.
Angiographic findings were highly suggestive of a renal cell carcinoma with a second neoplasm in the renal pelvis. Subsequently, the patient underwent right radical nephroureterectomy and partial cystectomy. Section of the removed specimen revealed a 4.0×3.8cm solid tumor confind to the kidney in the upper pole and a transitional cell carcinoma arising from the renal pelvis. In addition, transitional cell carcinoma was present in the distal ureter.
