An oncofetal antigen commonly used to assess recurrence of tumor growth following removal of a colon tumor would be:

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CEA (carcinoembryonic antigen) is an oncofetal antigen that is often used to monitor the recurrence of colon cancer after treatment. It is a protein that is normally produced during fetal development but can also be produced by colon cancer cells. Elevated levels of CEA in the blood can indicate the presence of colon cancer and can also be used to monitor the success of treatment or to detect the recurrence of cancer. AFP (alpha-fetoprotein) is another oncofetal antigen that is commonly used to monitor the recurrence of liver cancer, but it is not typically associated with colon cancer. CA 125 is a tumor marker that is often used to monitor ovarian cancer, and cathepsin D is a protein that is involved in the growth and spread of cancer cells but is not typically used as a tumor marker.

An Oncofetal Antigen Commonly Used to Assess Recurrence of Tumor