... scan after the patient presented with 3 days of gross hematuria and right flank pain. Marked hydronephrosis/hydroureter of the superolateral renal allograft is seen. b Follow-up CT scan 1 month after initial presentation showing expansion of the confluent mass now measuring 13.0 × 6.7 cm...

... disappeared, an arteriopelvic shunt appeared. The pyelogram showed that the high pressure arterial blood flow drained directly into the pelvic cavity. Massive gross hematuria occurred immediately accompanied by a sudden blood pressure drop to 60 mm Hg, necessitating blood transfusion. Fortunately...