Ann Clin Neurophysiol.  2020 Apr;22(1):24-28. 10.14253/acn.2020.22.1.24.

Febrile Hashimoto’s encephalopathymimicking infectious encephalitis

Affiliations
  • 1Department of Neurology, Eulji Medical Center, Eulji University College of Medicine, Seoul, Korea

Abstract

Hashimoto’s encephalopathy (HE) is a heterogeneous encephalopathy with diverse clinical presentations. Here we report on a 69-year-old woman who presented with confusion, aphasia, fever, and focal ictal discharges. Cerebrospinal fluid analysis and a workup for other fever origins revealed no abnormality and a high level of thyroperoxidase antibody was detected, which findings led to a diagnosis of HE. The symptoms subsided after treatment. This study highlights the importance of considering HE in patients presenting with fever and abnormal EEG findings.

Keyword

Electroencephalography; Encephalopathy; Fever
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