Radiation therapy is a cancer treatment that uses high-energy X-rays to kill cancer cells and shrink tumors. It can treat many cancers (and some non-cancerous conditions) and may be used alone or with surgery or chemotherapy.
Radiation is usually delivered from a machine outside the body (external beam), but sometimes it is placed inside or near the tumor (brachytherapy).
See Managing Symptoms & Side Effects for more information about treatment-related side effects.
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A radiation therapist and nurse from Cancer Care Alberta talk about what radiation treatment is, what radiation treatments are like, how together we keep you safe and resources available to help you through treatment.
Very precise, high-dose radiation focused on a small area.
Radiation treatment to the whole body, usually given before a stem cell transplant.
Uses MRI imaging to better see the tumor and guide treatment.
Small radiation sources are placed inside or right next to the tumor.