Successful Endourologic Management of Lower Pole Moiety Ureteropelvic Junction Obstruction in a Partially Duplicated Collecting System

Abstract

We present two cases of symptomatic lower pole moiety ureteropelvic junction obstruction (UPJO) in a partially duplicated collecting system that were successfully treated with minimally invasive endourologic procedures. In the first case, we performed retrograde endopyelotomy with the Acucise® ureteral cutting balloon device, and in the latter case, we performed percutaneous nephrolithotomy and antegrade endopyelotomy because of the presence of multiple renal stones. Subsequent intravenous pyelography confirmed marked resolution of the obstruction, and both patients remained asymptomatic during 1 year of follow-up.

A Case of Lower-Pole Moiety Ureteral Stenosis Close to Ureteropelvic Junction in an Incomplete Duplicated Collecting System Managed by Retrograde Balloon Dilatation that Needed a 2nd Ureteral Stent to the Upper-Pole

“…The ureteropelvic junction (UPJ) of the lower-pole, both with a complete and incomplete duplicated system, is a common cause of obstruction. Although minimally invasive treatment like a retrograde endoscopic approach has been reported, most cases are successfully managed [1][2][3][4]. I herein report a case with ureteral stenosis close to UPJ of the lower-pole in an incomplete duplicated collecting system managed by retrograde balloon dilatation.…”