thyroglobulin

Definition / meaning of thyroglobulin

The form that thyroid hormone takes when stored in the cells of the thyroid. If the thyroid has been removed, thyroglobulin should not show up on a blood test. Doctors measure thyroglobulin level in blood to detect thyroid cancer cells that remain in the body after treatment.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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