重复肾、重复输尿管是小儿泌尿系统中一种比较少见的先天性发育畸形。往往重复肾的上肾部发育不全及发育异常，其输尿管口多发生不同程度的异位，可有输尿管末端的梗阻，而导致重复输尿管严重扩张而积水。我科１９８１年１０月～１９９８年１月收治１６例，现报告如下。１... Repeated renal, ureteral duplication is a relatively rare congenital urinary system in children with congenital malformations. Often repeated the renal upper renal dysplasia and dysplasia, the ureteral orifice occurred in varying degrees of ectopic, may have ureteral obstruction, which led to severe ureteral duplication of repeated water. Our department from October 1981 to January 1998 admitted to 16 cases, are as follows. 1 ...