Bilateral Generalized Polymicrogyria is related to polymicrogyria and cortical dysplasia, complex, with other brain malformations 14a. An important gene associated with Bilateral Generalized Polymicrogyria is GRIN1 (Glutamate Ionotropic Receptor NMDA Type Subunit 1). Affiliated tissues include brain and cortex, and related phenotypes are profound global developmental delay and delayed gross motor development