Hippocampal shape variations at term equivalent age in very preterm infants compared with term controls: Perinatal predictors and functional significance at age 7

► At term equivalent, preterm infants' hippocampi are less infolded than term infants. ► Preterm hippocampi are less curved toward midline and less arched superior-inferiorly. ► Straighter hippocampi are associated with white matter injury and postnatal steroids. ► Infant hippocampal shape is not related to 7 year memory. ► Larger infant hippocampal volume is associated with better verbal memory at 7.