恶性肿瘤性心包炎临床上少见,可分为原发性和转移性两类。而心包原发性肿瘤又为罕见,国内曾有三例心包积液,经手术及病理检查证明是心包间皮细胞瘤。原发性心包肿瘤为间皮细胞瘤和肉瘤。间皮肿瘤可发生在胸膜、腹膜、心包膜等处。据报道间皮瘤年龄最小为9岁,最大为23岁,平均34岁,半数在20～40岁之间。转移性恶性肿瘤性心包炎主要病因是附近器官肿瘤的侵入所致。转移瘤常继发于胸部肿瘤,如 Malignant pericarditis is rare in clinical practice and can be divided into primary and metastatic categories. The pericardial primary tumor is rare. There were three cases of pericardial effusion in the country. The pericardial mesothelioma was proved by surgery and pathological examination. Primary pericardial tumors are mesothelioma and sarcoma. Mesothelioma can occur in the pleura, peritoneum, pericardium, etc. It is reported that the smallest age of mesothelioma is 9 years old, the largest is 23 years old, the average is 34 years old, and half is between 20 to 40 years old. The main cause of metastatic malignant pericarditis is the invasion of nearby organ tumors. Metastatic tumors often secondary to thoracic tumors, such as