恶性肿瘤常常有肺转移。转移的恶性肿瘤病人尸检资料证实有20％的转移瘤局限于肺内。下表列举了尸检材料各大器官转移的情况。在所有的器官中,特别是直接死于乳腺、肾脏、前列腺和睾丸肿瘤的病人,20％以上的都有局限性肺转移。结肠直肠癌、食管癌和颈部癌,也有些病人的转移是在双肺。但常有机会能施行肺切除术。所以,对肺转移瘤病人的治疗更显得重要。 Malignant tumors often have lung metastases. The autopsy data of metastatic cancer patients confirmed that 20% of metastases were confined to the lungs. The following table lists the major organ metastases of autopsy materials. In all organs, particularly those who directly die from breast, kidney, prostate, and testicular tumors, more than 20% have limited lung metastases. Colorectal, esophageal, and cervical cancers, but also in some patients, are metastatic in both lungs. However, there are often opportunities for lung resection. Therefore, the treatment of lung metastases is even more important.