The MRI sequences demonstrate intense and extensive thickening with nodular enhancement of the basal subarachnoid cisterns, along the middle cerebral arteries to the Sylvian fissures. Mild dilatation of the 3rd and lateral ventricles suggesting associated obstructive hydrocephalus.
Diffuse leptomeningeal enhancement is seen as nodular and linear enhancement along the cerebellar surface as well as at the cerebral hemispheres with small tuberculomas at the left Sylvian regions. A small left corona radiata area of high signal on FLAIR and T2WI most likely a focal established infarct (no restricted diffusion).