临床资料患者,男,58岁10个月。因“反复咳嗽10+年,加重伴胸痛4+月”于2015年3月20日入我院。入院前患者于当地医院行心脏彩超提示左房占位,考虑粘液瘤,为进一步治疗入我院。心脏查体:心界不大,心律齐,各瓣膜区未闻及杂音,心率100次/分,否认家族遗传病史。入院后,超声心动图(图1)提示:左房稍增大,余房室大小正常;二尖瓣后瓣环处可见一等回声团附着,较松软,大小约为 Clinical data Patient, male, 58 years old 10 months. Because “repeated cough 10+ years, aggravated with chest pain 4+ months” on March 20, 2015 into our hospital. Pre-hospital patients at the local hospital cardiac ultrasound prompted left atrial space occupancy, consider myxoma, for further treatment into our hospital. Heart examination: small heart, heart rate Qi, the valve area did not smell and noise, heart rate 100 beats / min, deny family history of heredity. After admission, echocardiography (Figure 1) prompts: left atrial slightly increased, the size of the remaining atrioventricular; mitral valve loop can be seen after the first echo attached, more soft, the size of about