What distinguishes this condition for septo-optic dysplasia?
Septo-optic dysplasia should not have abnormal fusion of the frontal lobes.
What abnormality of the intracranial vasculature can you identify?
Azygous anterior cerebral artery.
Two selected images from an MRI of the brain demonstrate fusion of the frontal horns of the lateral ventricles with abnormal genu and rostrum of the corpus callosum and partial fusion of the cingulate gyrus anteriorly. The anterior cerebral artery is azygous and displaced anteriorly.