Patient Education Cancer Care | Page 8

Surgery to Restore Appearance or Function Radiation Therapy Radiation therapy is sometimes called radiotherapy, X-ray therapy, or irradiation. It treats cancer by using beams of high- energy waves or streams of particles called radiation. The equipment aims a specifi c amount of radiation at tumors or areas of the body where there is cancer. Sometimes, reconstructive or restorative surgery is needed to improve appearance or restore organ function after other surgery is done to remove the tumor. Breast reconstruction after a mastectomy is a common type of reconstructive surgery. Restorative surgery may be needed to restore the function to the intestine or bladder in these types of cancer. Types of Radiation There are two types of radiation therapy: External Radiation Surgery to Prevent Cancer External radiation is most often used for cancer treatment. A machine directs high-energy X-rays at the cancer site. The treatments are painless and you are not radioactive. CyberKnife ® is a type of stereotactic radiosurgery. It is a form of radiation therapy — not surgery — and involves no cutting. Prophylactic surgery may be done to prevent cancer from developing. This type of surgery may be suggested when: • Biopsies show precancerous tissue • You have a medical condition that may increase your risk for cancer • You carry a gene known to increase your risk of cancer Internal Radiation Internal radiation is also called implant therapy or brachytherapy. The radioactive source can be a temporary or permanent implant inside the body at the site of the cancer. An HDR (high- dose-rate) radiation implant is a type of internal radiation that is an option for some cancer patients. The radiation is delivered inside the body close to the cancer. This limits the amount of healthy tissue exposed to radiation. If you are having internal radiation, your doctor and healthcare providers will explain how it will be done and any special precautions that must be taken. 7