Radiation-induced thyroiditis
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.{{cite journal |vauthors=Bindra A, Braunstein GD |title=Thyroiditis |journal=Am Fam Physician |volume=73 |issue=10 |pages=1769–76 |date=May 2006 |pmid=16734054 |url=http://www.aafp.org/afp/2006/0515/p1769.html}} Stored T3 and T4 are released as rapid destruction of thyroid tissue occurs which results in pain, tenderness, and exacerbation of hyperthyroidism. {{Cite journal |last=Bindra |first=Archana |last2=Braunstein |first2=Glenn D. |date=2006-05-15 |title=Thyroiditis |url=https://pubmed.ncbi.nlm.nih.gov/16734054/ |journal=American Family Physician |volume=73 |issue=10 |pages=1769–1776 |issn=0002-838X |pmid=16734054}}