title: The spectrum of ureteropelvic junction obstructions occurring in duplicated collecting systems.
abstract: The authors reviewed four cases of ureteropelvic junction obstruction (UPJ) in duplicated systems. Associated abnormalities included contralateral duplication, vesicoureteral reflux, and a case of ipsilateral upper pole ectopic ureter with a dysplastic upper pole moiety. Surgical management included dismembered pyeloplasty, ureteral reimplantation, end-to-side pyeloureterostomy to the upper-pole ureter, and upper-pole heminephrectomy with lower-pole dismembered pyeloplasty. UPJ obstructions occurring in duplicated systems often are associated with other anomalies.
authors.affiliation: Department of Urology, Cleveland Clinic Foundation, OH 44195, USA.
authors.forename: J
authors.initials: J
authors.lastname: Ulchaker
authors.forename: J
authors.initials: J
authors.lastname: Ross
authors.forename: F
authors.initials: F
authors.lastname: Alexander
authors.forename: R
authors.initials: R
authors.lastname: Kay
mesh_terms: D002675:Child, Preschool; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology; D007223:Infant; D007668:Kidney / Q000002:abnormalities*; D007674:Kidney Diseases / Q000150:complications; D007682:Kidney Pelvis / Q000601:surgery; D008297:Male; D014513:Ureter / Q000002:abnormalities* / Q000601:surgery; D014517:Ureteral Obstruction / Q000150:complications*; D014718:Vesico-Ureteral Reflux / Q000209:etiology