両側同時性腎盂尿管腫瘍の1例

SIMULTANEOUS LEFT PELVIC AND RIGHT URETERAL TUMORS : A CASE REPORT

　72歳，男性。血尿と右側腹部痛を訴え近医受診。尿管結石として治療を受けていたが高度の腎機能障害を認めたため当科転入院。左腎盂腫瘍，右尿管腫瘍と診断し左腎尿管全摘，右尿管部分切除術施行。腫　はいずれも移行上皮癌grade 2であった。左腎は動脈硬化性の変化がみられた。術後8カ月経過した現在，腫瘍の再発や転移は認めていないが腎機能障害は徐々に進行しており，いずれは残存腎尿路摘出と透析治療が必要と思われる。

A 72-year-old man with the chief complaint of gross hematuria and right flank pain was admitted. He was in the state of chronic renal failure. Clinical investigations revealed left pelvic and right ureteral tumors. Left nephroureterectomy and right partial ureterectomy were performed. Both tumors were grade 2 papillary transitional cell carcinoma. There is no recurrence or metastasis in 8 months following the operation. This is the 15th case of simultaneous bilateral urothelial tumors of the upper urinary tract in Japan.