PT - JOURNAL ARTICLE AU - Christina Raissa I Francisco AU - Perpetua C Patal AU - Eileen A Cubillan AU - Iris Thiele Isip-Tan TI - Sweet’s syndrome associated with Hashimoto’s thyroiditis AID - 10.1136/bcr.02.2011.3921 DP - 2010 Dec 31 TA - BMJ Case Reports PG - bcr0220113921 VI - 2011 4099 - http://casereports.bmj.com/content/2011/bcr.02.2011.3921.short 4100 - http://casereports.bmj.com/content/2011/bcr.02.2011.3921.full AB - Sweet’s syndrome or acute febrile neutrophilic dermatosis is characterised by the abrupt onset of painful erythematous plaques or nodules, pyrexia (>38°F) and histopathologic evidence of a dense neutrophilic infiltrate without vasculitis. It has been reported in association with many diseases, however, its association with Hashimoto’s thyroiditis is rare. A 47-year-old Filipino woman with a 30-year history of an asymptomatic anterior neck mass developed painful, erythematous annular plaques on her arms with associated fever. Skin biopsy confirmed the diagnosis of Sweet’s syndrome. The anterior neck mass was confirmed to be Hashimoto’s thyroiditis. This is a rare association with only two reported cases in the literature. There are no published cases in the Philippines on Sweet’s syndrome and Hashimoto’s thyroiditis to date.