脑膜炎的早期诊断对病情和预后影响极大。脑脊液(CSF)的多种指标测定对这组疾病的诊断和鉴别诊断常具有决定性意义。但由于近来疾病的临床变异和CSF改变不典型的病例渐有增加,常造成临床诊断的困难。尽管常规的脑脊液检查仍不失为诊断这类疾病 Early diagnosis of meningitis has a great impact on the disease and prognosis. Various indicators of cerebrospinal fluid (CSF) determination of the diagnosis of this group of diseases and differential diagnosis is often of decisive significance. However, due to the recent clinical manifestations of disease and CSF changes in atypical cases gradually increased, often causing clinical diagnosis difficulties. Although routine cerebrospinal fluid is still a diagnosis of such diseases