NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,879 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

intrathecal chemotherapy
(IN-truh-THEE-kul KEE-moh-THAYR-uh-pee)
Treatment in which anticancer drugs are injected into the fluid-filled space between the thin layers of tissue that cover the brain and spinal cord.