尿管結石に合併したfibroepithelial polypの1例

Abstract

A 65-year-old woman visited our hospital with chief complaints of left flank pain and low-grade fever. She was diagnosed as having left ureter stone by KUB X -ray and left hydronephrosis by abdominal CT. After a percutaneous nephrostomy catheter was indwelled, she underwent extracorporeal shock wave lithotripsy (ESWL) twice. As these ESWLs were not effective, she underwent transurethral ureterolithotripsy (TUL) later. The ureteral polyp concomitant with ureteral stone was found and biopsied for rule -out of malignant tumor. The histological diagnosis was fibroepithelial polyp. Ureterolith- otomy with partial ureterectomy including the polyp was performed because of the local stenosis caused by severe granulation adjacent to the stone. The pathogenesis and management of this rare condition are discussed.