NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,916 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.

anterior mediastinum
(an-TEER-ee-er MEE-dee-uh-STY-num)
The area in the front part of the chest between the lungs. Also called prevascular space.