嚢胞性尿管炎 : 尿管鏡下生検により診断された1例

概要

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62歳男.腎結石及び慢性尿路感染症に合併し,硬性尿管鏡下の生検で診断がつき,抗菌薬による治療で軽快した嚢胞性尿管炎例A 62-year-old male with left ureteritis cystica was reported. Extracorporeal shock wave lithotripsy (ESWL) was performed for his left renal stone 14 and 17 months earlier. However, small fragments remained in the lower calyx and pyuria, microhematuria and bacteriuria continued. Drip infusion pyelography (DIP) showed a small filling defect of the left dilated ureter. Retrograde pyelography revealed multiple, small filling defects of the left middle through the lower ureter. Multiple small submucosal cysts were observed mostly in the pelvic ureter by ureteroscopic examination. Ureteroscopic cold punch biopsy proved ureteritis cystica. The ureteral dilatation improved and filling defects disappeared after the treatment with antibiotics.