Thyroglobulin Antibodies

Thyroglobulin is a protein that binds to thyroxine (T4). Its levels may be elevated in inflammatory conditions of the thyroid as well as in thyroid cancer. Serum thyroglobulin levels are particularly useful in thyroid cancer monitoring, since localized or metastatic thyroid carcinomas increase these levels, and can fall again after complete thyroidectomy and radioactive ablation therapy.