Autoimmune encephalitis (AE) associated with anti‐LGI1 antibodies often involves the limbic system and is characterized by symptoms of medial temporal lobe (MTL) damage (drug‐resistant epilepsy, cognitive impairment, behavioral abnormalities, etc.), sleep dysfunctions and autonomic dysfunctions.2 This evidence concerns the gene LGI1 and acrodermatitis enteropathica.