MRI - MRI brain
Sagittal T2
Sagittal T1
Axial T2
Axial FLAIR
Axial T1
MRI demonstrates marked ventriculomegaly with sulci at the vertex being somewhat smaller than elsewhere without, however, disproportionate widening of the Sylvian fissures of insular cisterns. There is moderate ballooning of the third ventricular recesses (infundibular and supraoptic).
The aqueduct of Sylvius is large and demonstrates a very prominent flow void, although this is an unreliable feature, depending on many sequences specific parameters.
The fourth ventricle communicates freely with an enlarged CSF filled space below and behind the vermis, which is somewhat elevated.