Glossary of Medical Terms

carcinoembryonic antigen peptide-1

A small piece of a tumor marker called carcinoembryonic antigen (CEA). CEA may be found in the blood of people who have colon cancer, other types of cancer or diseases, or who smoke tobacco. Carcinoembryonic antigen peptide-1 is used to make a vaccine that may help stimulate the body’s immune system to kill cancer cells. Also called CAP-1 and CEA peptide-1.

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