Lacunes are small fluid-filled cavities, < 1.5 cm in diameter, which are found in the basal ganglia, the thalamus, the internal capsule, the pons and the cerebral and cerebellar white matter. They are the result of infarction secondary to the occlusion of the small penetrating branches of the major intracranial arteries. They are frequently multiple.
They are apparent in approximately 25% of strokes.
Possible clinical features include:
Last reviewed 11/2019