腹膜透析患者に発生した腎癌の1例

A CASE OF RENAL CELL CARCINOMA ON PERITONEAL DIALYSIS

　長期透析者の腎臓に多発生嚢胞さらに腎癌が合併する率が高いことが注目されている。37歳の男性で腎不全のため連続携帯的腹膜灌流療法（CAPD）を継続し，開始後2年目に偶然両側多発性腎嚢胞を伴つた右腎癌を認め，左腎に吸引細胞診を行い悪性変化がないと判断した後，腰部斜切開による右腎摘出術を行つた。第4病日から再びCAPDを開始し，術後6カ月経過した現在良好に日常生活を営んでいる症例を報告する。

A 37-year-old man with continuous ambulatory peritoneal dialysis (CAPD) due to chronic renal failure, for about 2 years was accidentally found to have right renal mass and multiple cystic lesions of both kidneys by sonography. Then, extraperitoneal right nephrectomy was carried out. The kidney (7×4×2) was remarkably contracted with small multiple cyste and a solid mass (2.5×2×1cm). Histopathologically, this was renal adenocarcinoma with acquired cystic disease. CAPD was restarted on the 4th post-operative day and he is in good condition at the present time.