Pulmonary metastasectomy for colorectal cancer: Prognosis analysis disaggregated by the origin of the primary tumor

The metastatic pattern differs between colon cancer and rectal cancer because of the distinct venous drainage systems. It is unclear whether colon cancer and rectal cancer are associated with different prognostic factors based on the anatomic difference.We assessed the prognostic factors and survival outcomes of patients with colorectal cancer who underwent pulmonary metastasectomy (PM), disaggregated by the location of primary colorectal...