SCN1A and epilepsy: This is an important finding, as it highlights that despite SCN1A-related epilepsies (such as Dravet syndrome GEFS +) being some of the most widely recognised syndromes, many individuals may remain undiagnosed into adulthood, and adult neurologists should still suspect these, and other monogenic epilepsies, as potential diagnoses to be made in adults with compatible phenotypes [22, 23].