非特異性限局性腎孟尿管炎の一例

Abstract

A case of non-specific segmental pyeloureteritis is presented. A 64-year-old man complained of right flank pain and gross hematuria. Radiological findings demonstrated filling defects in the upper ureter and renal pelvis on the right side. Urinary cytological examination showed class 3. Right complete nephroureterectomy was performed because an indurated thickening of the renal pelvis and ureter suggested a probable malignant lesion. Histopathological findings showed marked infiltration of inflammatory cells in the submucosal and muscular layers. We collected reports on the case of non-specific segmental pyeloureteritis in the Japanese literature, and in this study we focus on the diagnosis and treatment of this rare condition.