Ureterocutaneous fistula: a case report of treatment by subtrigonal injection of polytetrafluoroethylene (Sting procedure).

A ureterocutaneous fistula developed in a patient after nephrectomy for pyohydronephrosis in a kidney with vesicoureteral reflux. Endoscopic injection of polytetrafluoroethylene (Teflon) paste at the ureteral orifice prevented further reflux and cured the ureterocutaneous fistula.