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.

stage 0 disease
(stayj … dih-ZEEZ)
A group of abnormal cells that remain in the place where they first formed. They have not spread. These abnormal cells may become cancer and spread into nearby normal tissue. Also called carcinoma in situ.