Antithyroglobulin Antibody
Alternate Names : Thyroglobulin Antibody, Thyroid Antithyroglobulin Antibody
Definition Antithyroglobulin antibody is a test to measure antithyroglobulin antibodies in the blood. Thyroglobulin is a protein that is present in thyroid cells. (See "Why the test is performed.")
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Why is the Test Performed?
This test helps to detect possible thyroid problems. Thyroglobulin is a protein that is normally confined to the thyroid gland. It is the source of the thyroxine and triiodothyronine hormones in the body. The presence of autoantibodies to thyroglobulin can lead to the destruction of the thyroid gland. Such antibodies are more likely to appear after trauma to, or inflammation of, the thyroid gland.
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