Treatment options for colorectal cancer depend on the stage of the tumor, which is how far it has spread or affected the bowel wall and other tissues, and whether it is located in the colon or rectum. Generally, patients with colon cancer receive postoperative chemotherapy if the lymph nodes are positive.
For rectal cancer, patients with positive nodules or tumors that extend into the perirectal fat receive chemotherapy plus radiation, most often before surgery. Treatment also depends on the patient's age, medical history, general health, and tolerance for specific medications and therapies.
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