肿瘤标记物(Tumor marker)的研究是近年来深受重视、发展迅速的肿瘤检测技术。不少肺癌标记物的研究目前已走出实验室探索,进入临床应用阶段。其用途如下:①在高发人群如:老年有家族史、吸烟史、致癌物质接触史者中作为普查指标,筛选发现无症状的肺癌。②帮助症状和体征疑似肺癌的病人确定诊断。③当肺癌微小,尚属亚临床期,就能指导分期和指示预后。④治疗期间监测病情、包括 The study of Tumor markers is a tumor detection technique that has received much attention and rapid development in recent years. Many studies of lung cancer markers have now come out of the laboratory and entered the clinical application stage. Its uses are as follows: 1 Screening for the discovery of asymptomatic lung cancer is performed in high-risk groups such as elderly people with family history, smoking history, and exposure to carcinogens. 2 Patients with suspected lung cancer should be diagnosed with the help of signs and symptoms. 3 When the lung cancer is small and it is in the subclinical period, it can guide the staging and indicate the prognosis. 4 Monitor the condition during treatment, including