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目的：分析脑膜瘤瘤周水肿的MRI表现与手术、病理的关系。材料和方法：对51例磁共振图像中脑膜瘤的瘤周水肿特点进行分析，并与手术、病理对照。结果：51％脑膜瘤伴瘤周水肿，磁共振T2WI瘤周水肿有月晕型（50％）和指样型（50％）两种，该分型与显微外科手术界面相对应。结论：MRI有助于脑内、外肿瘤的鉴别诊断。
Objective: To analyze the relationship between MRI manifestations of peripheral edema of meningioma and surgery and pathology. Materials and Methods: The characteristics of peritumoral edema of meningiomas in 51 cases of MR imaging were analyzed and compared with those of surgery and pathology. Results: 51% of meningioma with peritumoral edema and T2WI of perineural edema had two types: lunate type (50%) and finger type (50%). The classification corresponded to microsurgical interface. Conclusion: MRI is helpful for the differential diagnosis of intracranial and extracranial tumors.