Endometriosis represents extrauterine nonneoplastic endometrial tissue. Involvement of the genitourinary tract has been reported at an incidence of about 1.2% and ureteral endometriosis is a rare entity. There are two major pathological types of ureteral endometriosis extrinsic and intrinsic. Here, we describe a case report about an ureteral endometriosis extrinsic with double collecting system and complete ureteral duplication.
