癌胚抗原、肿瘤特异性生长因子联合检测对胸腔积液诊断的意义

目的 探讨肿瘤标志物癌胚抗原(CEA)联合恶性肿瘤特异性生长因子(TSGF)检测在胸腔积液诊断中的意义.方法 采集有胸腔积液患者的血清和胸水样本各165例,其中恶性胸腔积液患者55例.良性胸腔积液患者110例,用化学发光法检测其血清和胸水癌胚抗原(CEA)、肿瘤特异性生长因子(TSGF)的含量.结果 恶性胸水组血清CEA、TSGF的阳性率分别为58.8%,54.3%,胸水CEA、TSGF的阳性率分别为75.8%,70.7%;良性胸腔积液组CEA、TSGF血清及胸水的阳性率分别为0、18.4%和0、11.4%,差异有统计学意义(P<0.01);两组含量的检测也得出相似的结果.联合检测血清CEA、TSGF诊断恶性胸腔积液的敏感度为85.7%,特异度为97.8%.结论 肿瘤标志物CEA、TSGF联合检测,对胸腔积液的鉴别诊断有较好的临床价值.

Combined assays of tumor marker CEA and TSGF for differential diagnosis of pleural effusion

Objective To study the clinical significance of tumor markers combined assay in the differential diagnosis of pleural effusion.Methods 165 serum and hydrothorax samples were collected from 165 in-patients with pleural effusion.Among them ,55 patients were suffered from malignant pleural effusion and 110 patients with benign pleural effusion.The concentration of CEA,and TSGF were determined by chemiluminescence assay.Results In malignant pleural effusion group,the positive rates of serum CEA and TSGF were 58.8% and 54.3% respectively,the positive rates of hydrothorax CEA and TSGF were 75.8% ,70.7% respectively.Among them,CEA and TSGF in malignant group were significantly higher than that in benign pleural effusion group(P < 0.01 ).So as did of the concentration.The sensitivity of combined assay with serum TSGF in diagnosing malignant pleural effusion was 85.7% ,with the specificity of 97.8%.Conclusion Tumor markers of CEA and TSGF have high clinical values in the differential diagnosis of pleural effusion.The combined assay with TSGF is recommended.