肺癌是一种常见的恶性肿瘤,近年来其发病率和死亡率均有明显增高。据上海市调查统计,肺癌的发病率和死亡率已上升为所有恶性肿瘤中的第二位,严重危害着人民的身体健康。肺癌死亡率近年增高的原因,除绝对发病率不断上升外,诊断不及时影响治疗效果也是一个因素。因此,提高早期诊断水平、作好肺癌防治工作,是降低肺癌死亡率和发病率的关键。 Lung cancer is a common malignancy and its incidence and mortality have increased significantly in recent years. According to statistics from Shanghai, the incidence and death rate of lung cancer has risen to be the second of all malignancies, seriously endangering people’s health. The reasons for the recent increase in lung cancer mortality rate, in addition to the absolute increase in the incidence, the diagnosis does not affect the treatment effect is also a factor. Therefore, improving the level of early diagnosis and prevention and treatment of lung cancer is the key to reducing the mortality and morbidity of lung cancer.