【摘要】 目的 探讨脑膜瘤的CT表现与病理分型之间的关系。 方法 收集经CT诊断和手术病理证实的脑膜瘤12例，CT检查均采用增强前后常规扫描，病理为手术巨检和切片光镜下所见。 结果 典型脑膜瘤为过渡型或纤维母细胞型脑膜瘤，密度(信号)均匀，明显均匀强化，15%～20%伴有钙化，无或轻度瘤周水肿。不典型脑膜瘤以合胞体和血管母细胞瘤型脑膜瘤为主，密度(信号)不均匀，无或不均匀强化，瘤周水肿较重。恶性脑膜瘤为混杂密度(信号)肿块，强化不均匀，形状不规则，瘤周水肿明显，伴有骨质破坏。 结论 CT平扫+增强是诊断脑膜瘤的最主要方法，准确率为95%，在一定程度上可提示脑膜瘤的病理学分型，为术前选择手术方案及判定预后提供信息。

    【关键词】 脑膜瘤;CT;病理学

    Contrast Research between CT Manifestation and Pathological Analysis of Meningioma

    CHANG Jinyong，TENG Yun，

    the People's Hospital of Lian Jiang City，Guangdong Province524400

    ABSTRACT Objective To discuss the relationship between CT manifestation and pathological typing.Methods 12cases with meningioma were diagnosed by CT and identified by pathology during operation;Routine CT scanning was given before and after rein-forcement，pathological heavy check and section were made.Results Typical meningioma were transitional type or just fibroblast menin-gioma，the density was uniform，15%to20%of the cases showed calcification，without or with slight edema around the tumor.The atypi-cal meningioma were plasmodim and angio-blascell ......