Figure 1: Noncontrast enhancing computer tomography (CT) scan. (A) Axial cuts showing fused diencephalic structures, absent ventricular anatomy in supra, and an infratentorial compartment with undifferentiated posterior fossa. (B) Axial cuts showing very thin cortico-mental thickness with single cerebrospinal fluid-filled cavity with agenesis of the cerebrum, corpus callosum, and absent falx cerebri. (C) Coronal cuts showing normal orbital and nasal anatomy