NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,798 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.

epithelial carcinoma
(eh-pih-THEE-lee-ul KAR-sih-NOH-muh)
Cancer that begins in the cells that line an organ.