1978 Volume 69 Issue 12 Pages 1660-1666
There are two types of multiple and simple sac in acquired ureteral diveticula. The later is extremely rare. Only eight cases of simple sac type have been described in previous papers in the world and two cases in Japan. Acquired ureteral diverticulum after renal transplantation was not reported yet. A case of renal transplant recipient with acquired ureteal diverticulum from kidney allograft is presented herein. The diverticulum opened into the ureter approximately one centimeter proximal from the vesico-ureteral junction. It contained about 500ml of urine, the internal surface was covered with transitional epithelium but its wall did not contain muscular layer in histopathology. The etiology of this case was considered that ureteral stenosis of the vesico-ureteral junction was seen in the first operation and some weakness of the ureter was acquired because of transplantation. We performed the diverticulectomy and the uretero-ureteroneostomy twice, which failed. Then the third operation of the uretero-pyerostomy using the opposite inherent ureter successfully cured the disturbance.
