近半个世纪以来,人们在肺癌防治方面做了大量工作,但肺癌在全世界范围内的发病率和死亡率仍居各种恶性肿瘤之首,并无明显下降趋势。这主要是因为肺癌的病因和发病机制还未彻底弄清,缺乏有效的预防措施。要真正早期诊断肺癌,首先应对癌变的整个过程深入了解,进而进行相关检测,才 In the past half century, people have done a lot of work in the prevention and treatment of lung cancer. However, the incidence and death rate of lung cancer in the world still ranks first among all malignant tumors, and there is no obvious downward trend. This is mainly due to the fact that the etiology and pathogenesis of lung cancer have not been thoroughly understood and there are no effective preventive measures. To truly diagnose lung cancer early, we must first understand the entire process of carcinogenesis and then conduct related tests.