原发性支气管肺癌(简称肺癌)起源于支气管黏膜或腺体,是目前世界上最常见的恶性肿瘤之一。近年来肺癌发病率在中国呈明显上升趋势,在城市肿瘤死亡排序已上升为第1位。肺癌是一种预后极差的疾病,尽管采用手术、放疗和化疗等多学科治疗,其5年生存率仍低于15%,其中重要的原因是缺? Primary bronchial lung cancer (referred to as lung cancer) originated in the bronchial mucosa or gland, is currently one of the most common malignant tumors in the world. In recent years, the incidence of lung cancer has shown a clear upward trend in China, and the ranking of cancer deaths has risen to No. 1 in the city. Lung cancer is a very poor prognosis of the disease, despite the use of surgery, radiotherapy and chemotherapy and other multidisciplinary treatment, the 5-year survival rate is still below 15%, the important reason is the lack of?