title: Urolithiasis in horseshoe kidney with duplex collecting system.
abstract: Horseshoe kidney is a congenital renal fusion abnormality that can be complicated by stones; in rare cases, it has also been associated with a duplex collecting system. We present images of a horseshoe kidney with a right partial duplex collecting system that was not detected on the preoperative computed tomography scan. The use of a prone-split leg position for percutaneous nephrolithotomy facilitated the performance of flexible ureterorenoscopy of the lower pole moiety and percutaneous nephrolithotomy of the upper pole moiety in 1 setting with complete stone clearance.
authors.affiliation: Department of Urology, Cleveland Clinic, Cleveland, OH, USA.
authors.forename: Fabio Cesar Miranda
authors.initials: FC
authors.lastname: Torricelli
authors.forename: Manoj
authors.initials: M
authors.lastname: Monga
mesh_terms: D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging*; D004724:Endoscopy; D006801:Humans; D007668:Kidney / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D007669:Kidney Calculi / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D009403:Nephrostomy, Percutaneous; D011859:Radiography