DNA倍体分析在浆膜腔积液诊断中的应用

Application of DNA ploidy analysis in diagnosis of serous cavity effusion

目的探讨全自动细胞DNA倍体分析系统在良、恶性浆膜腔积液诊断中的应用价值。方法 262例浆膜腔积液标本(胸腔积液169例、腹水78例、心包积液15例)经离心处理后,制片2张,其中1张用于Feulgen染色后,给予全自动细胞DNA倍体分析,另1张用于巴氏染色,同样给予常规的细胞学检查,比较2种不同的检测方法对恶性浆膜腔积液的阳性检出率。结果 262例浆膜腔积液常规细胞学检测出119例(45.4%)异常,而同样标本中DNA倍体分析检测出113例(43.1%)异常,常规细胞学找到肿瘤细胞及可疑肿瘤细胞73例标本,均发现异倍体细胞的存在,而在常规细胞中找到核异质细胞的46例中,仅有34例出现异倍体细胞。结论全自动细胞DNA倍体分析系统有助于提高浆膜腔积液的阳性检出率,可作为细胞学检查的重要辅助手段。

Objective To explore the application value of automated cell DNA ploidy analysis system in the diagnosis of benign and malignant serous cavity effusion.Methods 262 cases of serous cavity effusion（169cases of pleural effusion,78 cases of ascites,15 cases of pericardial effusion）were treated by centrifugation,2 slices of each sample were made.One of them used for dyeing Feulgen,which given automatic cell DNA ploidy analysis,another one for Papanicolaou staining,with a conventional cytology.The positive detection rate of these 2 kinds of different detection methods for malignant serous cavity effusion were compared.Results 119 cases（45.4%）of 262 cases abnormal were detected by conventional cytology of serous cavity effusion.Meanwhile,113 cases（43.1%）were detected abnormal by DNA ploidy analysis in the same samples.73 cases of tumor cells and suspicious tumor cells were found by conventional cytology,and different ploidy cells were found in all of these samples In conventional cells,46 cases of nuclear heterogeneous cells were found,while only 34 cases exist different ploidy cells.Conclusion Automated cell DNA ploidy analysis system is helpful to improve the positive diagnosis rate of serous cavity effusion,which can be used as an important auxiliary means of cytology.