嫌色素細胞性腎癌の1例

Abstract

症例は27歳男で, 肉眼的血尿と右側腹部痛を主訴とした.画像所見と腎生検の結果は右腎オンコサイトーマであったが, 腫瘍が大きく悪性の可能性も否定できなかったことから根治的右腎摘除術を施行し, 病理組織所見より嫌色素細胞性腎癌と診断した.術後は再発予防目的にインターフェロンα300万単位を週3回投与し, 現在は外来で週2回投与を行いながら経過観察中である.本症の診断や治療に関する文献的考察を加えて報告した

We report a case of chromophobe cell renal carcinoma. A 27-year-old male suffered from right flank pain and gross hematuria. Drip infusion pyelography and ultrasonographic examination revealed a right renal mass and it was diagnosed as renal oncocytoma by needle biopsy of the right kidney. He was referred to our hospital for the operation and right radical nephrectomy was performed. The cut surface of the tumor was beige in color. The cytoplasm of the tumor cells stained positively for colloidal iron and showed a negative reaction for Vimentin. From these results, this tumor was given a diagnosis of chromophobe cell renal carcinoma.