大島 満¹, 古嶋 博司¹, 岩崎 康一¹, 大塚 英明¹, 對馬 由佳子², 梨本 泰代², 高橋 幸彦², 岡崎 裕史³, 丸山 行夫³

Mitsuru OHSHIMA¹, Hiroshi FURUSHIMA¹, Koichi IWASAKI¹, Hideaki OHTSUKA¹, Yukako TSUSHIMA², Yasuyo NASHIMOTO², Yukihiko TAKAHASHI², Hirofumi OKAZAKI³, Yukio MARUYAMA³

¹新潟こばり病院循環器内科, ²新潟こばり病院生理機能検査室, ³新潟こばり病院心臓血管外科

¹Department of Cardiology, Niigata Kobari Hospital, ²Department of Physiological Examination, Niigata Kobari Hospital, ³Department of Cardiovascular Surgery, Niigata Kobari Hospital

キーワード :

A 61-year-old woman with a tumor in the right atrium was first seen at the department of cardiovascular surgery of this institution on August 24, 1995. Transesophageal echocardiography (TEE) showed masses in the inferior vena cava and right atrium. One of these masses entered the right ventricle during diastole. Magnetic resonance imaging and venography suggested extension of a tumor originating near the left ovarian vein through the inferior vena cava and into the right atrium. The tumor was resected under cardiopulmonary bypass on September 13, 1995, and the pathologic diagnosis was intravenous leiomyomatosis (IVL). IVL is a rare benign tumor that extends intravenously in the uterus and pelvic veins: fewer than 30 cases have been reported. TEE contributes to preoperative assessment of the structure and the extension of the tumor into the great vessels, inflow and outflow tracts, values, and intra-atrial septum.