多种疾病能引起胸水,病因诊断有时困难,在病因诊断过程中,通常首先区别是渗出液或漏出液,以便进一步作有关检查。虽然区别两者最可靠的指标是胸水与血清的蛋白及乳酸脱氢酶的含量与比值。但胸水细胞学检查不仅有助于渗出液与漏出液的区 A variety of diseases can cause pleural effusion, etiological diagnosis is sometimes difficult, in the etiology of the diagnosis, usually the first difference is the exudate or leakage of fluid for further examination. Although the difference between the two most reliable indicators of pleural fluid and serum protein and lactate dehydrogenase content and ratio. However, pleural fluid cytology not only contribute to the area of ​​exudate and leakage of fluid