PMC6907054_01
MRI brain showing acute ischemic regions. (a-b) Acute infarcts in the posterior circulation involving bilateral cerebellar hemispheres, medial bilateral occipital and parietal lobes, and the posterior watershed region at the vertex with small amount of hemorrhagic conversion within the right parietal parasagittal lesion. (c-d) MRI image of infarct in the medial occipital lobe and parietal lobes bilaterally.
CRIHEM2019-5180424.001.jpg
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fig1
MRI of the brain (Figure 1) revealed nonenhancing acute infarcts in the posterior circulation involving bilateral cerebellar hemispheres, medial bilateral occipital and parietal lobes, and the posterior watershed region at the vertex with small amount of hemorrhagic conversion within the right parietal parasagittal lesion.
MRA showing multiple luminal narrowing beaded pattern in most vessels (anterior cerebral arteries, posterior inferior M2 division of the right middle cerebral artery, and posterior cerebral arteries).
CRIHEM2019-5180424.002.jpg
PMC6907054_01_CRIHEM2019-5180424.002.jpg
fig2
MRA of the brain (Figure 2) without contrast further revealed multiple long and short segments of luminal narrowing with a beaded pattern in the anterior cerebral arteries, posterior inferior M2 division of the right middle cerebral artery, and posterior cerebral arteries indicating vasculitis as the etiology.