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为探讨鉴别肺癌与肺结核行之有效的简便方法，本研究采用放射免疫检测法检测血清癌胚抗原并联合ＰＰＤ皮肤试验对临床确诊的５０例肺癌与８０例肺结核患者进行观察。结果显示，血清癌胚抗原含量和癌胚抗原阳性率，肺癌组均明显高于肺结核组（Ｐ＜０．００１）；ＰＰＤ皮肤试验显性阳性率，肺结核组明显高于肺癌组（Ｐ＜０．００１）。提示癌胚抗原检测联合ＰＰＤ皮肤试验在肺癌与肺结核的鉴别诊断中有实际临床应用价值，可作为是否需进一步进行创伤性检查的重要依据之一。
To explore a simple and effective method for identifying lung cancer and tuberculosis, we used radioimmunoassay to detect serum carcinoembryonic antigen and combined with PPD skin test to observe clinically confirmed 50 cases of lung cancer and 80 cases of pulmonary tuberculosis. The results showed that serum carcinoembryonic antigen content and carcinoembryonic antigen positive rate were significantly higher in the lung cancer group than in the pulmonary tuberculosis group (P<0.001); PPD skin test dominant positive rate was significantly higher in the pulmonary tuberculosis group than in the lung cancer group (P<0 .001). It is suggested that the carcinoembryonic antigen test combined with PPD skin test has practical clinical value in the differential diagnosis of lung cancer and pulmonary tuberculosis, and can be used as one of the important basis for the need for further traumatic examination.