Dilatation of the third, and lateral ventricles with normal size, and configuration of the fourth ventricle. The sagittal FIESTA sequence shows an aqueductal web or diaphragm. Note the enlarged supraoptic, infundibular and pineal recesses of the third ventricle.
High signal intensity of the thalami, peri-and juxta-ventricular white matter (known case of hypoxic-ischaemic brain injury).