非同期発生の両側腎細胞癌の1例

概要

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A case of asynchronous bilateral renal cell carcinoma is reported. The patient was a 71-year-old man who visited our clinic with complaints of asymptomatic macrohematuria and fever on November 20, 1960. Clinical diagnosis was left renal tumor and left nephrectomy was performed on December 4, 1960. Histological diagnosis was renal cell carcinoma (common type, clear cell subtype, alveolar type and G1). The postoperative course was uneventful until complaints of diarrhea and weight loss in November, 1983. He visited our clinic again with a right abdominal mass on January, 1984. Right renal selective angiography revealed an enlargement and abnormal vascularity with tumor stain, hypervascularity and pooling in the whole kidney except for the upper pole lesion. CT scan revealed a space occupying lesion. Right radical nephrectomy was performed on March 6, 1984. Histological diagnosis was renal cell carcinoma (common type, mixed subtype, alveolar and tubular type, G2). He was treated by hemodialysis and steroid therapy after right nephrectomy but he died of massive gastro-intestinal bleeding on April 22, 1984. The paper is the 15th report of a bilateral renal cell carcinoma in Japan.