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NCI Dictionary of Cancer Terms


stereotaxic radiation therapy  listen  (STAYR-ee-oh-TAK-sik RAY-dee-AY-shun THAYR-uh-pee)

  A type of external radiation therapy that uses special equipment to position the patient and precisely deliver radiation to a tumor. The total dose of radiation is divided into several smaller doses given over several days. Stereotaxic radiation therapy is used to treat brain tumors and other brain disorders. It is also being studied in the treatment of other types of cancer, such as lung cancer. Also called stereotactic external-beam radiation therapy and stereotactic radiation therapy.