If the metastatic foci of colon cancer are less, radiofrequency ablation can be done, if the metastatic foci are more, radiofrequency ablation will not be considered, and chemotherapy will be considered.
Colon cancer is a common malignant tumor, which is easy to be metastasized, and the most easily metastasized part is the brain, so colon cancer patients need to judge the number of metastatic foci if lung metastasis occurs, and consider local anti-tumor treatment, such as radiofrequency ablation of lung metastasis, for the single small lung metastasis.
For multiple lung metastases, purely local treatment is not effective and very easy to recur, so for multiple foci of colon cancer metastasis, the overall treatment principle is to focus on chemotherapy and targeted therapy, and in addition, for colon cancer treatment, when there is complete acute intestinal obstruction, palliative resection of primary foci or simple fistulae can be taken to improve the symptoms of obstruction.