Figure 1. Cranial ultrasonogram (left) shows wide separation and sharp angulation of the frontal horns
with concave medial borders. A more posterior coronal image (right) shows vertically oriented
lateral ventricles. Note dilatation of the temporal horns and trigones of lateral ventricles.

Figure 2. On midline sagittal ultrasonogram the gyri and sulci radiate toward the roof of
the elevated third ventricle (3).