Liver Surgery and Chemotherapy in Treating Patients With Colorectal Cancer With Liver Metastases That Can Be Removed by Surgery and Lung Metastases That Cannot Be Removed by Surgery

This randomized phase II trial studies how well liver surgery and chemotherapy compared to chemotherapy alone work in treating patients with colorectal cancer that has spread to the liver (liver metastases) that can be removed by surgery and that has spread to the lungs (lung metastases) that cannot be removed by surgery. Liver surgery removes a portion of the liver affected by the tumor. Chemotherapy drugs work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Liver surgery and chemotherapy may work better than chemotherapy alone in treating patients with colorectal cancer which has spread to the liver and lungs.