Ureteroarterial fistulae are rare. We report 2 cases of this clinical
problem. Ureteroarterial fistulae can occur in association with prolon
ged ureteral stenting, radiation therapy, vascular pathology, and prio
r pelvic or vascular surgery. Identification of-a fistula is often dif
ficult and requires the physician to be highly alert and vigilant. Dia
gnostic and therapeutic options for a ureteroarterial fistula are disc
ussed.