Background: Absent septum pellucidum (ASP) is a brain abnormality often associated with neuroanatomic abnormalities including septo-optic dysplasia (SOD). We aimed to determine how frequently prenatally diagnosed isolated ASP is confirmed by postnatal imaging and to examine clinical outcomes for ASP.
Methods: This was a retrospective study of maternal-fetal dyads referred to Children's National Hospital from January 1, 2012, to June 30, 2019.