腎サンゴ状結石に伴う長期無機能腎に発生した腎細胞癌の1例

Abstract

62歳男, サンゴ状結石を伴う無機能腎の長期経過観察中に発症した腎細胞癌の1例.本症例の場合術前画像診断は困難であった.腎細胞癌と結石の合併は稀であるが, サンゴ状結石の長期経過観察例においては, 悪性腫瘍の発生も十分念頭に置く必要がある

A 62-year-old man was referred to our clinic with a chief complaint of gross hematuria. He had bilateral renal staghorn calculi at the age of 50 years and had undergone left nephrolithotomy. However, no treatment had been given to the right staghorn calculi associated with nonfunctioning kidney. Imaging diagnosis demonstrated no mass lesions in the bilateral kidneys. Right nephrectomy revealed renal cell carcinoma, tubular type, mixed subtype, G2, INF-beta with lymph node metastasis to the renal hilum. Cancer cells infiltrated diffusely throughout the entire renal parenchyma. He died of progressive metastases 15 months postoperatively.