背景与目的：原发于脑脊膜的血管外皮瘤临床少见。
Background and Objectives: Meningeal hemangiopericytoma is an uncommon tumor.
方法：结合临床资料、运用组织病理学和免疫组化方法观察20例原发于脑脊膜的血管外皮瘤，并对其中4例进行透射电镜观察。
Methods: Clinical data, combined with histopathology and immunohistochemistry of 20 cases of meningeal hemangiopericytoma were reviewed, in which 4 specimens were examined with electron microscope.
医生们发现一种快速诊断儿童是否罹患致死性的脑脊膜炎，是一种发生在大脑和脊髓表面被覆的膜的炎症。
Doctors have a faster way to determine if a child has a deadly type of meningitis, an inflammation of the membranes covering the brain and spinal cord.
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