Colon cancer can break away and spread, or metastatize, to the lungs, explains PubMed Central. The cancer spreads through the lymphatic or blood system, states the Cancer Treatment Centers of America.
Colon cancer spreads to the lungs during stage IV of the disease, according to the American Cancer Society. This type of cancer is called metastatic colon cancer, as opposed to lung cancer, states the National Cancer Institute. This is because the cancer cells that have spread to the lungs are actually colon cancer cells. Doctors recommend chemotherapy, radiation and surgery to get rid of the cancer cells in the lungs, explains WebMD. If the cancer cells are too widespread, surgery and chemotherapy alleviate the symptoms of cancer and help the patient live longer.