Subacute thyroiditis presenting as fever of unknown origin

Second Department of Internal Medicine, Red Cross Hospital, Athens, Greece.
International Journal of Clinical Practice (Impact Factor: 2.54). 11/2007; 64(1):97-8. DOI: 10.1111/j.1742-1241.2006.00927.x
Source: PubMed

ABSTRACT Subacute thyroiditis is a painful, inflammatory disease of the thyroid gland, probably of viral origin. It is an uncommon but important cause of fever of unknown origin (FUO). We report a case of a 72-year-old man who presented with a 1 month history of fever, headache and weakness, and in whom extensive evaluation only revealed subacute thyroiditis. He was treated with low-dose steroids and became asymptomatic after 2 weeks. In conclusion, when a patient presents with FUO, subacute thyroiditis should be considered as a possible cause even if classic features are absent.

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