Giant renal angiomyolipoma with an uncommon growth pattern: a case report

Abstract

特異な増殖形態を呈した巨大腎血管筋脂肪腫の1例神戸大学医学部泌尿器科学教室(主任=守殿貞夫教授)郷司和男, 後藤章暢, 守殿貞夫66歳女性に見られた特異な増殖形態を有する巨大腎血管筋脂肪腫の1例を報告する.腫瘍は左腎上極より発生し上方へ増殖し横隔膜を挙上すると共に腎の背側ヘシート状に増殖していた.MRIは本症の診断に有用で腫瘍と周囲臓器との関係を明瞭にすることができた.腎血管筋脂肪腫の診断のもとにCUSAを用いて腫瘍摘出術を施行した.腫瘍は重量1, 380gで弾性硬, 黄色調を呈し, 組織学的に血管筋脂肪腫であった.術後経過順調で術後2年を経たが明らかな再発を認めていない,

A case of a giant renal angiomyolipoma with uncommon growth pattern in a 66-year-old female is reported. The tumor originated from the upper pole of the left kidney and simultaneously grew posteriorly in a sheet-like fashion while a spheroid mass projected upwards. With magnetic resonance imaging (MRI), the relationship between the tumor and adjacent organs was clear. Tumorectomy employing cavitron ultrasonic surgical aspirator (CUSA) was performed, and proved to be a safe and simple procedure. There has been no recurrence of the growth 2 years post-operatively.