Presentation
Acute onset of headache and dizziness.
Patient Data
Age: 65 years
Gender: Female
From the case:
Subarachnoid FLAIR vascular hyperintensities
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Left parietotemporal areas of recent infarction are seen more appreciated at the insular cortex, associated with ipsilateral multiple linear hyperintensities seen along the subarachnoid space on FLAIR images. These subarachinoid abnormalities show low signal on SWI images (starting at the bifurcation of the left middle cerebral artery) compared to the contralateral normal side.
Cavum septum pellucidum and cavum vergae is an incidental finding.
From the case:
Subarachnoid FLAIR vascular hyperintensities
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No evidence of subarachnoid hemorrhage on the axial non-contrast CT images.
Case Discussion
The hyperintensities seen along the small vessels in the subarachnoid space on FLAIR are reported in cases of acute ischemic stroke and thought to represent slow flow along vessels.
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