MRI
There are extensive areas of restricted diffusion and T2/FLAIR-hyperintensity, primarily located in the right temporal lobe, and extending posteriorly-superiorly into the parietal lobe. Part of the insula, posterior right thalamus, and in the medial right occipital lobe are also involved. The remainder of the brain has a grossly normal signal pattern.
There is slight sulcal effacement on the right, but there is no ventricular compression, midline shift, or other major mass effect.
Nonspecific T2-hyperintensity is seen in the central pons, often associated with chronic small vessel disease.
There is fluid/mucous signal in the sphenoid sinus.