The experience of the application of direct nipple ureteroneocystomy in adults with congenital megaureter

Objective:To summarize the experiences of the application of diret nipple ureteroneocystostomy in 10 adults with congenital megaureter(CM).Methods:Among 10 cases with CM(11 sides), unilateral CM in 9 cases and bilateral CM in 1 case were found.All cases were treated with ureteroneocystostomy after1.5 to 2.0 cm evaginating papillae of terminal ureter.Results:All cases were followed up for 3 months to 10 years, the postoperative hydronephrosis in 10 cases(11 sides) improved or disappeared, their ureteral profiles improved or recovered.Conclusions:The imaging examination was the major diagnostic criteria of CM in adult.The ureter was cut back according to different caliber of CM.The 1.5 to 2.0 cm evaginating papillae of terminal ureter and ureteroneocystostomy can play an effective role on preventing urine reflux and anastomotic stricture.