Presentation
Dizziness and recent onset of right side body weakness
Patient Data
Left cerebral areas of recent infarction are seen involving the frontal, parietal and temporal lobes as well as left caudate and lentiform nuclei, in the form of abnormal high signal on DWI and corresponding low signal on ADC. On FLAIR, there is loss of normal flow void at the M1 segment of left middle cerebral artery (MCA) with corresponding signal drop on gradient sequence denoting MCA thrombus. Distal to the thrombus, multiple subarachnoid vascular hyperintensities are seen on FLAIR.
Bilateral cerebral old ischaemic changes are also seen.
Case Discussion
FLAIR sequence can demonstrate the sluggish flow along the small vessels in the subarachnoid space as hyperintensities, which is reported in cases of acute ischaemic stroke.
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