脑膜癌病是指癌发生广泛的脑膜和脊膜的转移,而脑和脊髓实质内并无癌肿。由于其临床表现无特异性,早期诊断困难,易误诊为各种脑膜炎、脑囊虫或颅内占位。但是脑脊液(CSF)细胞学检查找到癌细胞及脑膜活检可以做出诊断。本文报道12例脑膜癌病,并对其临床表现、CSF 改变、脑膜活检及尸检改变等进行分析讨论。 Meningioma is a cancer that causes extensive metastases of the meninges and meninges without cancer in the parenchyma of the brain and spinal cord. Because of its non-specific clinical manifestations, early diagnosis difficult, easily misdiagnosed as a variety of meningitis, cerebral cysticercosis or intracranial space. However, cytology of cerebrospinal fluid (CSF) to find cancer cells and meningeal biopsy can make a diagnosis. This article reports 12 cases of meningeal cancer, and its clinical manifestations, CSF changes, biopsy and autopsy changes were analyzed and discussed.