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NCI Dictionary of Cancer Terms

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thyroglobulin  listen  (THY-roh-GLAH-byoo-lin)

  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.