Coexistence of renal cell carcinoma and renal angiomyolipoma developing in a kidney: a case report

Abstract

結節性硬化症の合併は認めない.腹部超音波検査にて, 右腎の中部外側に高エコーを呈する腫瘤を, 下極付近に前者よりも更に高エコーを呈する腫瘤と指摘され当科受診.CT, MRI, 血管造影にて, 右腎中部外側の腫瘤は腎細胞癌と術前診断された.1990年3月経腹膜的根治的右腎摘除術を施行, 中部外側の腫瘍は腎細胞癌, alveolar type, common type, clear cell subtype, G1と, 下極付近の腫瘍は腎血管筋脂肪腫と病理診断された.術後経過は良好で, 術後61ヵ月再発転移を認めない

Coexistence of renal cell carcinoma and angiomyolipoma in the same kidney is rare. A 54-year-old woman without tuberous sclerosis was admitted for further examination of incidental renal masses on ultrasonography. Computerized tomography revealed a 17-mm high density mass in the mediolateral portion of the right kidney and a 5-mm low density mass near the right lower pole. Because the former mass showed a typical tumor pattern on selective renal angiography and the latter mass was strongly hyperechoic on ultrasonography, a clinical diagnosis of renal cell carcinoma and angiomyolipoma was made. A right radical nephrectomy confirmed the preoperative diagnosis. She has been followed for 61 months with no recurrence.