Based on the point view of anatomy, the pulmonary metastasis can be divided into 4 types: (1) hematogenic metastasis, (2) lymphatic metastasis, (3) pleural dissemination and (4) air-way metastasis.

• (2)淋巴性转移；(3)胸膜播种；(4)气道转移。各转移方式的影像表现多样，各有一定特点。