Hemangioma of the kidney

A case of hemangioma in the lower pole of the right kidney is reported. Relapsing hematuria and a urographic filling defect were the principal findings. A vascular mass of thick uniform vessels with rapid shunting of contrast medium into the vein was seen in arteriography. The histologic appearance was highly dilated vessels with well-framed walls. Lower heminephrectomy was successfully performed. The main features of this rare tumor are discussed.