SCN2A and Benign familial neonatal-infantile seizures: The most common diseases related with SCN2A mutation are West syndrome (WS; OMIM #308350), epilepsy of infancy with migrating focal seizures (EIMFS; OMIM #616645), and benign familial neonatal-infantile seizures (BFNIS; OMIM #607745) (Perucca and Perucca, 2019).