NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,992 terms related to cancer and medicine.

systemic radiation therapy
(sis-TEH-mik RAY-dee-AY-shun THAYR-uh-pee)
A type of radiation therapy in which a radioactive substance, such as radioactive iodine or a radioactively labeled monoclonal antibody, is swallowed or injected into the body and travels through the blood, locating and killing tumor cells.