Fig. 7
From: Beyond fetal magnetic resonance diagnosis of corpus callosum agenesis
A 30-year old pregnant female 30 WG, (G4P3L3), with positive consanguinity. MRI of fetal brain axial (a and b), sagittal (c) views show a small anterior part of CC that is lacking its body and splenium and only partially surrounds the 3rd ventricle, mild supratentorial ventriculomegaly with widely separated parallel medial wall of lateral ventricles, and colpocephaly. Post-natal MRI fetal brain follow-up confirms the diagnosis; axial (d) and mid-sagittal (e), coronal (f) views reveal absent CSP, high riding 3rd ventricle, mild supratentorial hydrocephalus, colpocephaly, hypoplasia of the posterior part of the body and splenium of the corpus callosum, the adjacent cortical gyri are radiating in “sun burst” pattern perpendicular to the dilated upward extended 3rd ventricle (arrow), the ventricles taking the appearance of moose head. Diagnosis: Isolated partial agenesis of the corpus callosum