Blind-Ending Branch of Bifid Ureter: Report of 3 Cases

Urolithiasis with Blind-Ending Ureteral Duplication and Azotemia Treated with Shock Wave Therapy

“…It may be classified as Y-shaped, inverted Y, complete ureteral duplication with one ureter ending blindly and a partial form that envelops the normal distal ureter [4], Blind-ending bifid ureters are 3 times more common in the females [5]. The blind branch may arise commonly in the middle or distal ureter [6] and only a small minority has been cranial in origin [7], The length of the blind pouch ranged from 1.5 to 23 cm [8]. Histologically, the wall of the blind branch contains the same layers as expected in the normal ureter although it can be hypoplas tic [9], In 25% of the cases, associated anomalies were present and 40-50% of these occurred in the renal system [ 10].…”

Blind-Ending Branch of Bifid Ureter

“…Blind-ending bifid ureters are more common in fe males [2,22] and in the middle and distal ureter [1,3,36]. However, a blind-ending bifid pelvis has been de scribed [40], apparently of the same origin.…”

“…It may be associated with other urologic anomalies: blind ureter with a contralateral duplication [39]: ipsilateral or contralateral reflux [7,29]; ureteropelvic dilatation [19], or ureterocele [23]. An associated esophageal-tracheal fistula has also been described [24] in an eunuch [1] and in a patient with Klinefelter's syn drome [2], Blind-ending bifid ureters are frequently asymptomat ic. Symptoms, when present, are not specific: attacks of flank pain [9]; voiding symptoms, and hematuria [14], The diagnosis is generally made by IVP [3,17] because the blind-ending ureter is filled by uretero-ureteral reflux [23], helped by antiperistaltic waves [9,30].…”

Solitary Kidney with Blind-Ending Ureteral Duplication

“…This sheath is partially deficient proximally and any surgical inter vention in such a situation should start only proximally, taking every care not to disturb the blood supply [11,12].…”