NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,800 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 IV Merkel cell carcinoma
(stayj … MER-kul sel KAR-sih-NOH-muh)
The tumor may be any size and has spread to distant parts of the body, such as the liver, lung, bone, or brain.