Fig 3. Sagittal T1-weighted MR image of the pituitary gland in a preterm neonate (born at gestational week 28) obtained near term (corrected age of 39 weeks; 77 days after birth). The anterior pituitary gland (arrow) is not significantly hyperintense. Arrowhead indicates hyperintensity of the posterior pituitary. Note that white matter is not hyperintense like adults because of the neonatal immaturity of myelination.