Radiation therapy uses high-powered energy beams from sources such as X-rays and protons to kill cancer cells. Radiation therapy may be used in combination with surgery and chemotherapy. Radiation therapy may help relieve symptoms, such as pain in patients with advanced stage of lung cancer.
Stereotactic radiosurgery may be an option for people with small lung cancers who can't undergo surgery or to treat cancers which have spread to other parts of the body.
