腎血管筋脂肪腫に対する無阻血腎腫瘍核出術の経験

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16歳女で,腫瘍の長径は約7cmと大きかったが,短径は約5cmで外下方に突出するように発育しており,又,良性腫瘍であること,年齢などを考慮して無阻血核出術を選択した.手術にはマイクロ波組織凝固装置(Microtaze)を用い,手術時間は2時間43分,出血量は370gで,術後経過良好であったA case of renal angiomyolipoma, successfully treated with non-ischemic tumor enucleation, is reported. A 16-year-old Japanese female visited another hospital with a chief complaint of general fatigue. She was diagnosed with angiomyolipoma of the right kidney, 7 cm in the long axis, which developed exteriorly at the lower pole. A nephrectomy was recommended. The patient visited us for a second opinion. We judged that nephron-sparing surgery was applicable to this case. The patient underwent non-ischemic tumor enucleation using a microwave tissue coagulator via retroperitoneal approach. The patient was discharged from our hospital 9 days after the surgery. Since a preoperative diagnosis with renal angiomyolipoma can be obtained relatively easily, maximum efforts for nephron-sparing surgery should be made.