患者男,53岁。胸闷不适3年伴呼吸困难1年入院。心脏超声示(图1):右侧房室沟处见一中低回声肿块,形态尚规则,肿物与室壁分界不清,大小约3.8cm×4.2cm×2.3cm,心包腔内并可见无回声区,左室后壁后方约1.8cm,心尖部约2.3cm。CDFI(图2):二、三尖瓣口可见少量蓝色反流信号。超声提示:(1)右房室沟处心脏占位,恶性肿瘤?(2)二、三尖瓣少量反流。(3)心包积液。入院查体:生命体征平稳,心前区触及震颤和心包摩擦 Male patient, 53 years old. Chest tightness discomfort 3 years with respiratory difficulties 1 year admission. Echocardiography (Figure 1): Right atrioventricular groove see a low echo mass, the rules are still rules, the tumor and the wall demarcation between the unclear, the size of about 3.8cm × 4.2cm × 2.3cm, pericardial cavity and visible No echo zone, left posterior wall of the posterior wall of about 1.8cm, apical 2.3cm. CDFI (Figure 2): two, tricuspid valve port visible a small amount of blue reflux signal. Ultrasound tips: (1) right atrioventricular heart placeholder, malignant tumors? (2) Second, a small amount of tricuspid regurgitation. (3) pericardial effusion. Admission examination: stable vital signs, precordial touch tremor and pericardial friction