Presentation
Right upper and lower limb numbness and tingling sensation, slurred speech for ~24 hours.
Patient Data
Ill-defined hypodensities in the left thalamus and corona radiata in line with small ischemic infarcts.
Rapid stroke protocol MRI:
Both the left thalamic and corona radiata infarcts are hyperintense on FLAIR, but only the thalamic lesion restricts on DWI confirming it as an acute infarct. There is no DWI-FLAIR mismatch.
Case Discussion
The CT appearance of subacute and acute lacunar infarcts can be identical, whilst MRI can readily differentiate on the basis of restricted diffusion, which gradually disappers during the subacute stage of ischemia.