Biology:Radiation-induced thyroiditis

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Radiation-induced thyroiditis is a form of painful, acute thyroiditis resulting from radioactive therapy to treat hyperthyroidism or from radiation to treat head and neck cancer or lymphoma. It affects 1% of those who have received radioactive iodine (I-131) therapy for Graves' Disease, typically presenting between 5 and 10 days after the procedure.[1] Stored T3 and T4 are released as rapid destruction of thyroid tissue occurs, resulting in pain, tenderness, and exacerbation of hyperthyroidism.


  1. "Thyroiditis". Am Fam Physician 73 (10): 1769–76. May 2006. PMID 16734054.