恶性肿瘤的肺部转移是常见的,肺脏通常是恶性肿瘤血行性转移的“靶器官”,身体各部位的恶性肿瘤通过各种途径转移至肺部发生率约20至40％之间。判别肺部有否转移性肿瘤对肿瘤的治疗和预后估计是十分重要的,近些年来对孤立性或比较局限性肺部转移性肿瘤,或在有些生殖器官恶性肿瘤(例如子宫绒毛膜上皮癌,睾丸恶性肿瘤等)即使出现肺部转移 Pulmonary metastases of malignant tumors are common, and the lungs are usually the “target organs” of hematogenous metastases of malignant tumors. Malignant tumors in various parts of the body are metastasized to the lungs by various means. The incidence rate is about 20 to 40%. It is very important to discriminate whether there is metastatic tumor in the lungs for the treatment and prognosis of tumors. In recent years, it has been shown to treat isolated or relatively localized metastatic lung tumors, or in some genital malignancies (such as uterine choriocarcinoma , testicular malignancy, etc.) Even with lung metastases