Radiation therapy is one of several options in cancer treatment. It may be used alone or in combination with surgery and/or chemotherapy. External radiation beam is the most common form of radiation therapy. A linear accelerator produces beam of high energy radiation to treat cancer cells. It can be use to treat a variety of cancer and non-cancerous growths in people of every age group.
Radiation therapy can effectively relieve pain by reducing pressure from a cancerous growth, prolong life by slowing or stopping tumor growth, and save lives by curing certain cancers.