Neurodevelopmental Disorder with Seizures and Gingival Overgrowth, also known as nedsgo, is related to visual epilepsy and gingival overgrowth. An important gene associated with Neurodevelopmental Disorder with Seizures and Gingival Overgrowth is TBC1D2B (TBC1 Domain Family Member 2B). Affiliated tissues include brain, and related phenotypes are seizure and gingival overgrowth