The most current and accurate treatment information is found at the NCCN physician site for colon or rectum and the NCI physician site for colon or rectum, other key topics are noted below and see videos here.

A recent review showed the benefit of using more intensive chemotherapy combined with IMRT using Tomotherapy for rectal cancer (go here).  Another recent update on treatment is here and symposium here
 

• avoiding a colostomy
• chemo/radiation after surgery and review of adjuvant therapy
• NCCN patient guidelines
• new chemotherapy drugs for colon and rectal cancer
• polyps
• radiation for colon cancer
• radiation for rectal cancer
• radiation for recurrent or inoperable cancer
• treatment for metastases