選択的動脈塞栓術を施行した最大径7cmの無症候性・散発性腎血管筋脂肪腫―自然破裂に対する予防的治療の必要性について

A case of asymptomatic and sporadic 7 cm angiomyolipoma treated by selective transcatheter arterial embolization:The need of prophylactic intervention for spontaneous rupture

　症例は65歳，女性。右乳癌の精査中に左腎腫瘍を認め紹介された。CTで左腎に径7cm，3cm，2cmの血管筋脂肪腫を認めた。右乳癌の手術と術後化学療法の後に，自然破裂の可能性と緊急時の対応が難しいことを考慮し，無症状ではあるものの予防的に選択的動脈塞栓術を行った。

A 65-year-old female was referred to our department, because left renal tumors had been found during the examination of the right breast cancer. Imaging studies showed three left renal angiomyolipomas which were 7 cm, 3 cm, and 2 cm in a diameter. Taking account of the possibility of spontaneous rupture of the tumors and the difficulty of emergency care, preventive and selective transcatheter arterial embolization was performed after the operation and adjuvant chemotherapy for the right breast cancer, although the tumors had been asymptomatic.