肺脏是全身转移性肿瘤发生率最高的脏器,转移性肺癌占整个肺癌病人的十分之一。今后,随着癌肿治疗水平的不断提高和肿瘤患者生存期的逐步延长,此类病例必将进一步增多。转移性肺癌的诊断对今后治疗方案的制订和预后的关系甚大,现就本题内容作一简介。【临床诊断】1.原发肿瘤的病史:多数病人有明确的原发肿瘤病史,但从原发肿瘤的治疗至肺部转移灶发现之间隔差异甚大,半数病人在一年以 The lung is the organ with the highest incidence of metastatic tumors, and metastatic lung cancer accounts for one-tenth of the entire lung cancer patients. In the future, with the continuous improvement of cancer treatment and the prolonged survival of cancer patients, such cases will surely increase further. The diagnosis of metastatic lung cancer has a great relationship with the formulation and prognosis of future treatment plans. We will now give a brief introduction to the content of this topic. [Clinical diagnosis] 1. The history of primary tumors: Most patients have a clear history of primary tumors, but the interval between the treatment of primary tumors and lung metastases is very different. Half of the patients have one year