MRI shows the following findings:-
- The interhemispheric fissure is defective anteriorly.
- Fused basal ganglia while the thalami are not fused.
- Absent frontal horns and anterior body of both lateral ventricles.. the rest of lateral ventricles are fused posteriorly.
- Absent rostrum, genu and anterior body of corpus callosum.
- Fused frontal lobes leaving only small area of communication for white matter to cross the midline (other than corpus callosum) best seen on DWI.