Colorectal cancer includes malignant or cancerous tumors of the colon and/or the rectum.
Approximately 145,000 Americans will be diagnosed with colorectal cancer this year.
The primary treatment for cancers of the colon is surgery and for cancers of the rectum, typically a combination of chemotherapy, radiation and surgery is employed.
External beam radiation therapy involves a series of daily radiation treatments targeting your tumor. Radiation treatments usually last less than 5 minutes but your appointment time is 15-20 minutes each day. Usually radiation treatments are delivered daily, Monday to Friday, for five to six weeks.
The number of treatments may also depend upon several other factors, including tumor size and location, other treatments you are receiving, and other medical conditions.