小児尿管ポリープの1例

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無症候性肉眼的血尿を主訴とした12歳男児で,排尿性尿路造影は重症右水腎症及び上部尿管の陰影欠損を示した.尿管ポリープによる右水腎症と診断した.尿管部分切除及び端々吻合を行った.切除尿管にポリープが認められ,組織学的に線維上皮性ポリープと診断された.術後6ヵ月に右水腎症は寛解を示したWe reported a case of ureteral polyp in a 12-year-old boy whose chief complaint was asymptomatic gross hematuria. An excretory urogram revealed severe right hydronephrosis with a filling defect of the upper ureter. Our diagnosis was right hydronephrosis due to the ureteral polyp. A partial ureterectomy with an end-to-end anastomosis was performed. A polyp was found in the excised ureter and the histological diagnosis was a fibroepithelial polyp. Six months after the operation, the right hydronephrosis showed remission.