[Ureteral duplication and ectopic ureterocele]

An ectopic ureterocele and unilateral ureteral duplication in a young women is reported. It is a rare congenital malformation of the urinary tract. In this typical case, the aspecific symptomatology and diagnostic imaging are discussed. The pathology was not diagnosed preoperatively. The excretory urography, sonography and CT scanning did not show neither the duplication and the ureterocele, and diagnosis of retroperitoneal mass was made. The data of literature are analyzed and the importance of surgical therapy is underlined.