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评价影像学对心肌心包肿瘤的应用及分析其影像学表现。材料与方法：经证实28例除1例良性心包血管瘤外，其余均为恶性。原发性8例，转移性19例。临床表现为心脏填塞症状与体征。20例血性心包积液。进行胸部平片。超声心动图、心电图、CT直接增强扫描、MRI检查。结果：①良性心包肿瘤MRI清楚显示心包扁平肿物伴纤维包膜，界限清晰，TWI，TZWI呈均匀中等信号；②恶性：CT和MHI心包或心肌常见到不规则增厚或多个结节影突出，后者致心腔不均匀缩小变形，前者多伴有心包积液。超声心动图有时亦见到上述证象，但胸部平片仅示心影扩大。结论：①影像学（尤其是MHI）常能提供心肌心包肿瘤的定位定性诊断；②心肌与心包肿瘤的鉴别在于前者多伴有心腔不规则变形缩小，而后者多有心包积液。良恶性区别常在于肿物境界与密度（信号）均匀与否；③本病鉴别诊断包括感染性和外伤性心包炎，粘液瘤，血栓以及局限性心肌肥厚（如肥厚型心肌病）等。
To evaluate the imaging application of myocardial pericardial tumor and analyze its imaging performance. Materials and Methods: It was confirmed that 28 cases except one case of benign pericardial hemangioma were malignant. Primary 8 cases, metastatic 19 cases. Clinical manifestations of heart congestion symptoms and signs. 20 cases of bloody pericardial effusion. Chest flat film. Echocardiography, electrocardiogram, CT direct enhanced scan, MRI examination. RESULTS: 1 MRI of benign pericardial tumor clearly showed pericardial flat tumor with fiber capsule with clear boundary, uniform medium signal on TWI and TZWI; 2 malignant: irregular thickening or multiple nodules on CT and MHI pericardium or myocardium Prominent, the latter caused by the heart cavity uneven deformation, the former more accompanied by pericardial effusion. Echocardiography can sometimes see the above-mentioned evidence, but the chest plain film only shows the enlargement of the heart. Conclusion: 1 Imaging (especially MHI) can often provide qualitative diagnosis of myocardial pericardial tumors. 2 The differentiation between myocardial and pericardial tumors is that the former is often associated with irregular deformation of the heart cavity, while the latter has pericardial effusion. The difference between benign and malignant tumors is usually in the state and density (signal) uniform or not; 3 differential diagnosis of the disease, including infectious and traumatic pericarditis, myxoma, thrombosis and localized myocardial hypertrophy (such as hypertrophic cardiomyopathy) and so on.