NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,209 terms related to cancer and medicine.

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prostate-specific antigen test
(PROS-tayt-speh-SIH-fik AN-tih-jen ...)
A blood test that measures the level of prostate-specific antigen (PSA), a substance produced by the prostate and some other tissues in the body. Increased levels of PSA may be a sign of prostate cancer.