目的 探寻多层螺旋CT联合肿瘤 相关抗原对肺结核合并肺癌的诊断价值。 方法 选择我院2013年1月至2016年12月住 院治疗的肺结核合并肺癌及继发型肺结核 患者各50例作为研究对象，对其资料进行 回顾性分析。结果 多层螺旋CT诊断肺结 核合并肺癌的敏感性较高，但特异度较 低；而肿瘤相关抗原诊断肺结核合并肺癌 的敏感性较低，特异度较高；两者联合可 以提高肺结核合并肺癌的诊断敏感性。结 论 多层螺旋CT与肿瘤相关抗原联合诊断 能及早确诊肺结核合并肺癌，有效避免误 诊、漏诊，有助于提高患者生存率。

Objective To explore the diagnostic value of multi - slice spiral CT combined with tumor-associated antigen in pulmonary tuberculosis with lung cancer. Methods Choose tuberculosis with lung cancer and secondary tuberculosis patients in our hospital in January 2013 to December 2016 hospitalized each 50 cases as the research object, its data were retrospectively analyzed. Results Multi-slice spiral CT diagnosis of pulmonary tuberculosis with lung cancer is more sensitive, but the specificity is low. The tumorassociated antigen diagnosis of pulmonary tuberculosis with lung cancer is less sensitive, specificity is higher. The combination of the two can improve the diagnostic sensitivity of pulmonary tuberculosis with lung cancer. Conclusion Multi-slice spiral CT combined with tumor-associated antigen can diagnose pulmonary tuberculosis with lung cancer, effectively avoid misdiagnosis, help improve patient survival.