Neurodevelopmental Disorder with Nonspecific Brain Abnormalities and with or Without Seizures, is also known as neurodevelopmental disorder with non-specific brain abnormalities and with or without seizures. An important gene associated with Neurodevelopmental Disorder with Nonspecific Brain Abnormalities and with or Without Seizures is DLL1 (Delta Like Canonical Notch Ligand 1). Affiliated tissues include brain and cerebellum, and related phenotypes are global developmental delay and abnormal facial shape