女患 ,44岁。因反复发作心悸 1个月入院。查体 :一般状态良好 ,无贫血外貌 ,心界向两侧扩大 ,心率 88次 /分 ,律不齐 ,偶发房早 ,各瓣口无异常杂音。Ｘ线胸片 :双肺纹理增强 ,心脏增大 ,心胸比例约0 6 ,超声心动图 :左房扩大 ,左房内异常团块回声 ,固定不动。初步诊断 :左心房 Women are 44 years old. Palpitation was repeated for 1 month after admission. Physical examination: The general condition is good, no anemia appearance, the heart of the community to expand on both sides, heart rate 88 beats / min, the law is not uniform, occasional room early, the valve no abnormal noise. X-ray: double lung texture enhancement, heart enlargement, cardiothoracic ratio of about 06, echocardiography: left atrial enlargement, left atrial abnormal mass echo, fixed immobile. Initial diagnosis: left atrium