ipsilateral ureteroureterostomy was performed in 20 patients , including 8 with reflux into 1 or both ipsilateral ureters , 7 with obstructed ectopic upper pole ureters without ureterocele , 4 with ectopic ureteroceles and 1 with incomplete ureteral duplication and obstruction of the common distal ureteral segment .
C0041951
ureters
C0474874
ectopic