脑膜瘤的磁共振表现与病理学分型相关性研究

Comparative study of meningioma between MRI features and pathological types

目的:探讨脑膜瘤MRI征象与病理关系。方法:28例经手术证实的脑膜瘤与病理对照分析。结果:28例脑膜瘤中包膜完整16例,瘤周水肿24例;硬膜“尾”征20例;均匀强化20例;瘤内出现砂粒体20例;瘤内出现血管流空信号4例。结论:MRI某一征象要确定脑膜瘤的病理分型无明显相关性,但综合考虑各种MRI征象,可以提示某种病理型脑膜瘤。

Objective:To study the relationship between MRI features and patholoical types.Methods:MRI features of 28 cases with meningiomas were compared with their pathological findings.Results:16 cases had their integral capsules. Peritumor edema were found in 24 cases.Dural 'tail'sign were present in 20 cases.20 cases appeared homogeneous enhancement. Psammoma-bodies were found in 20 cases with tumors.4 cases were present vascular washout effect in the tumors.Conclusion:There is no correlative relationship between only one sign of MRI and the pathologic classification. However many MRI signs could be indecated out meningioma of certain pathologic type by a comprehensive consideration.