{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,3]],"date-time":"2026-04-03T16:30:15Z","timestamp":1775233815630,"version":"3.50.1"},"reference-count":18,"publisher":"BMJ","issue":"9","funder":[{"name":"Goshen Health"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2025,9,11]]},"published-print":{"date-parts":[[2025,9]]},"abstract":"<jats:p>Hashimoto encephalopathy or steroid-responsive encephalopathy associated with autoimmune thyroiditis (SREAT) is a rare condition associated with rapidly progressive dementia, stroke-like symptoms, psychosis and positive antithyroid antibodies. In this case report, a woman in her 80s with hypothyroidism and no other medically relevant history presented with a 2-week complaint of progressive hallucinations, short-term memory loss and paranoia. Eventually hospitalised, her hospital course was complicated by severe hospital-acquired delirium, which clouded the clinical picture; however, initial workup revealed an elevated thyroglobulin antibody and thyroid peroxidase, both highly specific for SREAT. A 3-day course of high-dose methylprednisolone (1\u2009g\/day) was administered, which revealed marked improvement in patient symptoms. Definitive treatment included a 13-week oral prednisone taper and outpatient follow-up with neurology and primary care. In cases of new onset neuropsychiatric symptoms in geriatric populations, SREAT is a reversible, must-not-miss diagnosis, when treated with systemic steroids.<\/jats:p>","DOI":"10.1136\/bcr-2025-268082","type":"journal-article","created":{"date-parts":[[2025,9,25]],"date-time":"2025-09-25T10:30:38Z","timestamp":1758796238000},"page":"e268082","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Steroid-responsive encephalopathy associated with autoimmune thyroiditis"],"prefix":"10.1136","volume":"18","author":[{"given":"Mathew","family":"Wells","sequence":"first","affiliation":[{"name":"Department of Family Medicine, Goshen Health, Syracuse, Indiana, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jared","family":"Rife","sequence":"additional","affiliation":[{"name":"Department of General Surgery, University Hospitals Cleveland Medical Center, Cleveland, Ohio, 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