INTRODUCTION
Hashimoto's encephalopathy presents with high serum antithyroid antibody concentra-tions in association with an excellent response to immunosuppressant therapies such as corticosteroids.1 Females were four to five times more likely to be affected by this condi-tion,with a mean age of onset between 41 and 48 years2,though rare occasional paediatric presentations were also reported.34 Enceph-alopathy,episodes of seizures,stroke-like focal neurological deficits,myoclonus and cognitive impairment are the common mani-festations of this condition.Neuropsychiatric manifestations such as hallucinations and non-specific behavioural disturbances were reported in approximately 30% of patients as per the literature.2 5 Because of this,it often gets misdiagnosed as a psychiatric condition.
Here,we report on a child who presented with mutism and gait difficulties,and upon evaluation was diagnosed as having Hashimo-to's encephalopathy.