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Acute lacunar infarct

Case contributed by Bruno Di Muzio
Diagnosis almost certain

Presentation

Right-sided weakness and drift.

Patient Data

Age: 85-year-old
Gender: Male

Quick DWI

mri

There is a small focus of restricted diffusion within the left insular subcortical white matter consistent with acute lacunar infarct.

Case Discussion

Lacunar infarcts are small (<20 mm) infarcts in the distal distribution of deep penetrating vessels. They result from occlusion of one of the small penetrating end arteries at the base of the brain and are due to fibrinoid degeneration.

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