对31例蛛网膜下腔出血的37份脑脊液标本作细胞学检查,除2份假阴性外,自本病发作后起、甚至5个月内标本(有的脑脊液常规检查早已正常)均有明确的细胞学改变,包括早期白细胞反应和特征性的单核吞噬细胞反应,据此不但可与穿刺外伤出血和非出血性黄变症鉴别,还有助诊断轻微的蛛网膜下腔出血和提示出血时间。 Thirty seven samples of cerebrospinal fluid in patients with subarachnoid hemorrhage were cytologically examined. Except for 2 false negatives, the specimens (some routine cerebrospinal fluid tests were normal) were clear since the onset of the disease and even within 5 months Cytological changes, including early leukocyte reaction and characteristic mononuclear phagocyte reaction, which not only can be puncture traumatic hemorrhage and non-hemorrhagic yellow syndrome identification, but also help to diagnose minor subarachnoid hemorrhage and prompt bleeding time.