Multiple lesions of variable size measuring from 9 to 25 mm with surrounding oedema throughout the brain including, cerebral hemispheres, cerebellum and brain stem. The lesions are hyperintense on T2 and involving the subcortical regions, white matter and basal ganglia. The largest one is in the left basal ganglia. Several have low T2 signal rims.
Focal areas of restricted diffusion in a few lesions in the parietal lobe. No intralesional calcification.
Variable enhancement with faint ring enhancement of a minority of the lesions.
Normal paranasal sinuses.
Mastoids are normal and the calvarium demonstrates no abnormality.