尿失禁を伴わない腟前庭部異所開口尿管の1例

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2歳9ヵ月女児.尿失禁を伴わない左完全重複尿管,左上腎尿管の膣前庭部異所開口に対し,尿管膀胱心吻合術を施行した1例を報告し,尿禁制の機構及び治療方法の選択について考察したA case of ectopic ureter without urinary incontinence despite its ureteral orifice in the vestibulum is reported. A 2-year-and-9-month-old female was referred to our hospital with the pain of external genitalia, pollakisuria and macroscopic hematuria. Examination revealed a complete double system of the left upper tract with vestibular opening from the upper moiety. She did not show any signs of ureteric incontinence after the establishment of voiding habits. Because radioisotope (RI) scintigram showed apparent uptake in the upper half of the left kidney we performed left ureterocystoneostomy with psoas hitch procedure. We postulate that the incontinence mechanism is maintained when the running course of the ectopic ureter is through some portion of the urethral sphincter musculature. This is the 10th case reported in Japan.