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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Alfafetoproteína

Alpha-fetoprotein (AL-fuh-FEE-toh-PROH-teen)
A protein normally produced by a fetus. AFP levels are usually undetectable in the blood of healthy adult men or women (who are not pregnant). An elevated level of AFP suggests the presence of either a primary liver cancer or germ cell tumor. Also called AFP.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.