NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,804 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.

AAP
An enzyme that is normally found in healthy kidneys. It may be found at high levels in the urine when there are kidney problems. It is used as a biomarker to detect damage to the kidneys caused by drugs and other agents. It may also be used to diagnose certain kidney and liver disorders. Also called alanine aminopeptidase.