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肺癌是常见恶性肿瘤之一,其发病率及病死率均居癌症的首位,且有逐年增高趋势。尽管各种新的诊断、治疗方法不断出现,肺癌的预后仍很差,总的5年生存率仅13%~15%,肺癌早期诊断率仅15%[1],大多数经确诊往往已属中晚期。
Lung cancer is one of the common malignant tumors, its morbidity and mortality rate ranks first in cancer, and there is a trend of increasing year by year. Despite the emergence of new diagnoses and treatments, the prognosis of lung cancer is still poor. The overall 5-year survival rate is only 13% -15%, and the early diagnosis rate of lung cancer is only 15% [1]. Most of the diagnosed cases are often In the late.