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Voltage-gated potassium channel antibody encephalopathy, a rare cause of limbic encephalopathy, typically presents with memory impairment and seizures. Psychiatric symptoms have not been emphasized in the literature. Here we describe a 58-year-old man who presented with panic attacks and psychogenic non-epileptic seizures and, later on, developed delusions and hallucinations and then confusion. He was found to have antibodies to voltage-gated potassium channels. Treatment with immune-modulatory therapy resulted in almost complete recovery. |
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