Cortical Malformations, Occipital, also known as occipital pachygyria and polymicrogyria, is related to periodontitis, and has symptoms including absence seizures An important gene associated with Cortical Malformations, Occipital is LAMC3 (Laminin Subunit Gamma 3). Affiliated tissues include brain and bone, and related phenotypes are polymicrogyria and pachygyria