A venous phase of digit subtraction angiography (DSA) of the kidneys was evaluated in 87 urologic patients. The subtraction allows satisfactory visualization of the renal veins. Amplification of the image and its early emergence indirectly suggest pathological arteriovenous shunt confirmed by intraoperative rheography. Investigation of the renal veins and venous outflow from the kidneys with DSA bears sufficient information and is less traumatic versus standard retrograde venography.