脑膜脑膨出（Meningeal Herniation）也称脑膜膨出或脑膜疝出，系指脑组织连同其被覆的硬脑膜经颅骨缺损区膨出颅外。一般以枕部、顶部、前额、鼻部、眼眶和颅底区好发，轻者无明显神经系统的症状，重者（特别是脑室-脑膨出者）可出现与脑膨出发生部位及受损程度相关的智力下降、癫痫和瘫痪等神经系统功能障碍表现。
结果11例患者中颅底肿瘤6例，颅底骨纤维异常增生症3例，脑膜脑膨出2例。
Results Among 11 patients, there were 6 patients with skull base tumor, 3 patients with fibrosis hyperplasia, 2 patients with encephalomeningocele.
方法回顾性分析7例经手术和病理证实的颅底鼻内型脑膜脑膨出的CT与MRI表现。
Methods: CT and MRI features of 7 cases confirmed by operation and pathology were retrospectively analyzed.
本文根据骨缺损时硬脑膜在脑压作用下的弯曲变形特点，引入抗膨出特性参数：初始变形指数和蠕变指数。
The parameters of anti-protruding properties of dura and substitutes are introduced on the basis of constant creep solution of the dural deflection under the constant intracranial pressure .
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