近20年来,肺癌已成为危害人们健康的最重要的疾病之一。其发病率和死亡率逐年还有上升的趋势。肺癌病员要获得良好的疗效,关键在于早期发现,早期诊断和早期治疗,以期提高手术切除率和五年存活率。近些年来,应用计算机断层扫描,由于具有高敏感性,故可发现普通X线或断层摄片所不能发现的病灶,但其特征性低,纤维支气管镜检查及经纤支镜作肺活检,是确诊肺癌的较为可靠的手段。目前,肺癌的治疗仍以手术切除为主,但切除率 In the past 20 years, lung cancer has become one of the most important diseases that endanger people’s health. Its morbidity and mortality have continued to increase year by year. For patients with lung cancer to obtain good results, the key lies in early detection, early diagnosis and early treatment, with a view to improving the surgical resection rate and five-year survival rate. In recent years, using computed tomography, due to its high sensitivity, lesions that cannot be detected by ordinary X-ray or tomographic scans have been found, but their features are low. Fiberoptic bronchoscopy and transbronchial lung biopsy are performed. Is a more reliable means of diagnosis of lung cancer. At present, the treatment of lung cancer is still based on surgical resection, but the resection rate