肺癌是较常见的恶性肿瘤之一。由于肺癌的早期症状不明显,X 线上与肺炎、肺结核不易鉴别,故确诊时多属晚期,能作手术治疗的大约只有20%。肺癌又常较早发生淋巴或血行转移,在手术切除的病例中,5年生存率只有20～30%,大多在术后1～3年内死于广泛转移。然而,早期疗效确实比较好。如有人报告了28例早期肺癌(原位和早期浸润支气管肺癌)的手术结果,其中15例是1946～1959年的病例,其余13例是 Lung cancer is one of the more common malignant tumors. Because the early symptoms of lung cancer are not obvious, X-rays and pneumonia and tuberculosis are not easy to distinguish. Therefore, most of them are diagnosed late, and only about 20% of them can be treated with surgery. Lymphoid or hematogenous metastasis often occurs earlier in lung cancer. In surgical resection cases, the 5-year survival rate is only 20 to 30%, and most of them died of extensive metastases within 1 to 3 years after surgery. However, early results are indeed better. If someone has reported the results of 28 cases of early-stage lung cancer (in situ and early infiltration of bronchial lung cancer), 15 of them were cases from 1946 to 1959, and the remaining 13 cases were