| Namespace | MPheno.ontology | Obsolete | false |
| description | any structural anomaly of the gray matter structures of the telencephalon and limbic system in the brain; included is the cortical septal area, subcortical septal nuclei, and the septum pellucidum; however, many authorities consider the septal region to be made up of the septal area and the septal nuclei, but excluding the septum pellucidum |
