Alobar HP at 22 weeks of gestation. Axial scan (A) shows single featureless ventricular cavity (V) and fused thalami (T) protruding in the ventricle. Central linear echo is seen in the fused thalami. Trans-vaginal, semicoronal scan (B) shows a large amorphous ventricle (V), rostrally displaced cerebral cortex (C) and dorsal sac (DS), widely communicating with the ventricle (T-fused thalami, H-hippocampal fornix). Trans-vaginal, coronal scan (C) shows fused thalami (T) appearing as a 'bump' at the base of the single ventricle (V) (DS-dorsal sac, C-Cortex, H-Hippocampal fornix). Face profile of the same case (D) shows shallow orbits (arrow) without any visible eye, suggestive of anophthalmia.