Shimaya K, Kurihashi A, Tanaka N, Higashidate M
Department of Cardiology, Yokohama National Hospital, Japan.
Int J Cardiol. 1999 Feb 28;68(2):235-8. doi: 10.1016/s0167-5273(98)00359-3.
We describe a 25-year-old man with a subdivided left atrium. The lesion was misdiagnosed preoperatively as a cardiac tumor because echocardiographic and magnetic resonance imaging revealed a solid mass arising from the posterior wall of the left atrium. Cardiac surgery revealed a small accessory chamber draining the two left pulmonary veins. No membranous structure was evident between the chamber and the left atrium. The solid mass identified noninvasively was a hypertrophic muscle which formed a wall of the accessory chamber.
我们描述了一名25岁患有左心房分隔的男性。该病变术前被误诊为心脏肿瘤，因为超声心动图和磁共振成像显示左心房后壁有一实性肿块。心脏手术发现一个引流两条左肺静脉的小副腔。在该腔与左心房之间未发现明显的膜状结构。通过非侵入性检查确定的实性肿块是构成副腔壁的肥厚肌肉。
