Radiation Therapy Colon and Rectum
Radiation therapy is not standard treatment for colon cancer
Radiation therapy is used with surgery to treat rectal cancer
Pre-operative treatment to shrink tumor prior to surgery
Post-operative treatment to prevent metastasis and recurrence
Radiation is not standard treatment for colon cancer; however, radiation does play a major role in the treatment of rectal cancer. It may be given pre-operatively to shrink the tumor prior to surgery, or post-operatively to prevent metastasis and recurrence. The treatment modality for radiation therapy for rectal cancer is most often external beam radiation. The NPCR required radiation treatment data item is regional treatment modality.