房室结间皮瘤是一少见的良性肿瘤,文献已报告39例。本文报告1例15岁女孩患房室结间皮瘤,突然死亡。病例报告3岁时该女孩曾因病毒性肺炎住院,入院时查体心脏有轻度收缩期喷射性杂音。3个月后发现心率慢,50～60次/分,活动时心率只有轻微增加。心电图检查呈Ⅰ、Ⅱ、Ⅲ度之间互有变动的房室传导阻滞。诊断可能为病毒性心肌炎。曾短期用足量 Atrioventricular node mesothelioma is a rare benign tumor, the literature has been reported in 39 cases. This article reports a 15-year-old girl suffering from ventricular tachycardia, sudden death. Case report 3-year-old girl was hospitalized for viral pneumonia, admission to the examination of the heart with mild systolic ejection murmur. 3 months after the discovery of slow heart rate, 50 to 60 beats / min, activity, heart rate increased only slightly. ECG showed Ⅰ, Ⅱ, Ⅲ degrees between changes in atrioventricular block. Diagnosis may be viral myocarditis. Had short-term enough