Autoimmune encephalitis (AEs) encompasses a variable spectrum of clinical manifestations pointing to a widespread brain involvement, well beyond the limbic system alone [1]. Besides mental status alterations, cognitive deficits and behavioral/psychiatric disorders, seizures are part of the clinical core of AE [2], and often represent the most alarming and impressive sign at the disease onset, leading the patients to seek medical advice. The subacute onset of seizures, especially in elderly subjects, urges the need to investigate (and eventually rule out) numerous possible etiologies or mimics, ranging from vascular accidents and toxic-metabolic encephalopathies to neurodegenerative diseases.
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