Royer L, Hans G A, Canivet J L, Brichant J F, Cremers E, Senard M
Department of Anaesthesia and Intensive Care Medicine, CHU de Liège, University of Liège, Belgium.
Acta Anaesthesiol Belg. 2011;62(3):157-9.
A 65-year-old man was scheduled for an on-pump coronary artery bypass graft procedure because of a three-vessels coronary artery disease. A right atrial mass appended to the interatrial septum was discovered during intraoperative transoesophageal echocardiography. Therefore, the right atrium was opened. Gross examination revealed a fatty lesion of the interatrial septum. A biopsy was performed before the atrium was closed. A histological diagnosis of lipomatous hypertrophy of the interatrial septum was made. Lipomatous hypertrophy of the interatrial septum is a mass of adipocytes infiltrating the interatrial septum. The aspect of "dumbbell" produced by the sparing of the Fossa Ovalis is typical. The lesion is benign and remains asymptomatic most of the time although it can be responsible for cardiac arrhythmias or circulatory obstruction. The typical echographic aspect should be known to avoid unnecessary surgical resection.
一名65岁男性因三支冠状动脉疾病计划进行体外循环冠状动脉搭桥手术。术中经食管超声心动图检查发现右心房有一肿物附着于房间隔。因此，打开了右心房。大体检查显示房间隔有一个脂肪性病变。在关闭心房之前进行了活检。组织学诊断为房间隔脂肪性肥厚。房间隔脂肪性肥厚是脂肪细胞浸润房间隔形成的肿物。卵圆窝未受累形成的“哑铃”样外观很典型。该病变是良性的，大多数时候无症状，尽管它可能导致心律失常或循环梗阻。应了解其典型的超声表现，以避免不必要的手术切除。
