心脏肿瘤以粘液瘤最为多见。其临床诊断以心脏超声多普勒检查最为方便、快捷 ,但常需与心腔内血栓相鉴别 ,今报告 1例。1　临床资料患者男性 ,50岁 ,工人。 3年前出现劳累后胸闷、气短。近 1个月来呼吸困难 ,夜间常憋醒 ,不能平卧。查体 :呼吸 2 4次 /分 ,血压 160 /12 0 mm Hg Myxoma is the most common cardiac tumor. The clinical diagnosis of cardiac ultrasound Doppler examination is the most convenient and quick, but often need to identify with the intracardiac thrombosis, this case is reported in 1 case. 1 Clinical data of patients male, 50 years old, workers. Three years ago, she developed chest tightness and shortness of breath after exertion. Difficulty in breathing in the past 1 month, often wake up at night, can not lie. Physical examination: Breathing 2 times 4/min, blood pressure 160/12 0 mm Hg