title: Giant ureteral stone associated with partial ureteral duplication.
abstract: We are presenting a 36-year-old male patient with right flank pain and a history of recurrent urinary tract infection for three years. Radiographic intervention revealed a right partial ureteral duplication with a giant stone in size 9.6 cm in the ureteral limb draining the non-functioning upper pole of the right kidney. Open ureterolithotomy and partial nephroureterectomy was performed by a right flank incision. The presence of a ureteral partial duplication created a "yo-yo phenomenon", which interfered with stone passage to the bladder and may cause such giant ureteral stone.
authors.affiliation: Urology Clinic, SSK Ihtisas Hospital, Ankara, Turkey.
authors.forename: Muzaffer
authors.initials: M
authors.lastname: Eroglu
authors.forename: Ali
authors.initials: A
authors.lastname: Unsal
authors.forename: Ersin
authors.initials: E
authors.lastname: Cimentepe
authors.forename: Hasan
authors.initials: H
authors.lastname: Bakirtas
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D012008:Recurrence; D016896:Treatment Outcome; D014515:Ureteral Diseases / Q000150:complications / Q000151:congenital*; D014517:Ureteral Obstruction / Q000209:etiology* / Q000601:surgery; D014545:Urinary Calculi / Q000209:etiology* / Q000601:surgery; D014552:Urinary Tract Infections / Q000209:etiology; D013520:Urologic Surgical Procedures / Q000379:methods