We reported a case of LHIS associated with hypertrophic cardiomyopathy, which was suspected a hyperechoic intraa-trial tumor in transthoracic echocardiography.

• 我们在此提出一个合并脂肪性心房中隔肥大症与肥大性心肌病变的病例，其初始之胸部超音波检查发现为心肌肥大症及高?音之心房肿瘤。