these methods proved to be invaluable in the following selected cases : ( 1 ) massive ureteral dilatation and tortuosity due to vesicoureteral reflux or obstruction , ( 2 ) secondary operations following previous urinary diversion or unsatisfactory ureteral tailoring , ( 3 ) multiple obstructions within the same ureter , ( 4 ) transureteroureterostomy of dilated ureters , and ( 5 ) definitive surgery for dilated ipsilateral ureter of complete duplication .
C0521620
ureteral dilatation
C0041951
ureters