Legend FLAIR axial images demonstrate abnormal high signal involving gray and white matter in the right frontal and parietal lobes.

Legend Another axial FLAIR image (left) confirms involvement of the left frontal cortex. A diffusion-weighted (middle) image reveals restricted diffusion in the same areas, which are confirmed as hypointensity on the ADC map (right).

Legend MRA images (left) reveal multifocal narrowing of intracranial vessels, as do conventional angiographic images (right), best seen in the middle cerebral arteries. Key words: mri dwi mra angio vascular stroke ischemia arteritis

Brain Diagnosis: Cerebral arteritis (Not further characterized)