CEA (Carcinoembryonic Antigen)

Carcinoembryonic Antigen (CEA) is a protein that typically exists in very low levels in the blood of healthy adults. Initially discovered in 1965, CEA has since become a significant biomarker used in the diagnosis, prognosis, and monitoring of certain types of cancers, particularly colorectal cancer. Understanding the levels of CEA and their implications is crucial for both healthcare professionals and patients in managing cancer effectively.