一般情况下,脑脊液、浆膜腔液中细胞数量很少,需进行细胞收集后才能作细胞学检查。教科书和一些操作手册中,往往只介绍离心沉淀法收集细胞,其优点是操作简便,收获细胞多,但该法有明显的缺陷,由于标本中蛋白质含量过低等因素影响,加上离心力的作用,细胞形态结构易被破坏,尤其是一些具有诊断意义的细胞如肿瘤细胞等,更易被破坏,从而影响细胞学 Under normal circumstances, the cerebrospinal fluid, serosal fluid in the small number of cells, cells need to be collected for cytological examination. Textbooks and some manuals often only describe the collection of cells by centrifugal precipitation, which has the advantage of easy handling and more cells to be harvested, but the method has obvious drawbacks. Due to the low protein content in the specimen and other factors, coupled with the effect of centrifugal force , Cell morphology and structure easily destroyed, in particular, some of the diagnostic significance of cells such as tumor cells, more vulnerable to damage, thereby affecting the cytology