CNTNAP2 and erythema multiforme: For example, recent studies suggest that OT may trigger paraneoplastic neuromyelitis optica spectrum disorders (NMOSD), myelin oligodendrocyte glycoprotein antibody-associated encephalomyelitis (MOG-EM), and anti-contactin-associated protein-like 2 (CASPR2) antibody-associated autoimmune encephalitis (6–9).