title: Ureteral Stone in the Distal Blind-ending Branch of a Bifid Ureter.
abstract: A bifid ureter with a distal blind-ending branch is a rare congenital anomaly. Most patients are asymptomatic; only patients with complications, such as infection, vesicoureteral reflux, or stone formation, present symptoms. We describe the case of a patient with urinary stone located in the distal blind-ending branch of a bifid ureter diagnosed during transurethral lithotripsy. Preoperative noncontrast-enhanced computed tomography did not reveal a stone in the distal blind-ending branch of the bifid ureter, but a rigid ureteroscope did; however, it could not reach the stone. Therefore, the stone was extracted using a basket catheter under a flexible ureteroscope.
authors.affiliation: Department of Urology, International University of Health and Welfare Mita Hospital, Tokyo, Japan. Electronic address: ashandjesus@gmail.com.
authors.forename: Naoya
authors.initials: N
authors.lastname: Niwa
authors.affiliation: Department of Urology, International University of Health and Welfare Mita Hospital, Tokyo, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Ohigashi
authors.affiliation: Department of Urology, International University of Health and Welfare Mita Hospital, Tokyo, Japan.
authors.forename: Hideharu
authors.initials: H
authors.lastname: Bessho
authors.affiliation: Lithotripsy Center, International University of Health and Welfare Mita Hospital, Tokyo, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Arakawa