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T2-FLAIR MRI revealed hyperintensities in the temporal, parietal, occipital lobes, left caudate nucleus, and right cerebellum (A). An MRA indicated multifocal, segmental, and diffuse narrowing of cerebral arteries (large and medium) [(B), red arrows]. After 10 days, complete remission of abnormalities was observed in a follow-up MRI compared to the previous signals (C). An MRA demonstrated significant cerebral artery recovery from diffuse segmental constriction (D).
