NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,846 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 II thymoma
(... thy-MOH-muh)
Cancer has spread through the capsule (sac) that surrounds the thymus and into the fat around the thymus or into the lining of the chest cavity.