Ishikawa T, Shimizu Y, Kimura E, Nishizawa K, Takanashi S, Kaneko K
Osaka City General Hospital, Division of Cardiovascular Surgery, Japan.
Nihon Kyobu Geka Gakkai Zasshi. 1996 Sep;44(9):1796-9.
A 68-year-old female has developed dyspnea on effort for 5 years. On admission, a grade 2/6 apical systolic regurgitant murmur was noted. Chest X-ray examination showed moderate cardiac enlargement. Echocardiogram showed a highly echoic mass with acoustic shadow in the left atrium which was attached to the interatrial septum. A partial herniation of the tumor through the mitral annulus in diastolic phase and moderate mitral regurgitation was noted. Ultra fast computed tomography of the chest revealed a left atrial mass with high density area. At operation the mass was excised with atrial septum through the right atriotomy. Microscopic findings showed the myxoma with bone and bone marrow formation.
一名68岁女性出现劳力性呼吸困难5年。入院时，在心尖部闻及2/6级收缩期反流性杂音。胸部X线检查显示心脏中度增大。超声心动图显示左心房内有一高回声团块，伴有声影，附着于房间隔。舒张期可见肿瘤部分经二尖瓣环疝入左心室，并伴有中度二尖瓣反流。胸部超快计算机断层扫描显示左心房有一高密度区肿块。手术时，经右心房切口将肿块与房间隔一并切除。显微镜检查结果显示为伴有骨和骨髓形成的黏液瘤。
