LGI1 and amnesia: The illness is typically characterized by the subacute onset of amnesia, confusion, and seizures in middle age, with approximately 60% of patients showing medial temporal lobe T2 hyperintensities.1,2,e1,e2 The most characteristic seizure syndrome associated with the LGI1 antibody is the recently termed entity of faciobrachial dystonic seizures (FBDS).3, –, 5 FBDS consist of brief, frequent dystonic movements that most commonly affect the arm and ipsilateral hemiface.