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Lacunar Infarct |
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Lacunar Infarct Any of multiple small cerebral infarcts in the corona radiata, internal capsule, striatum, thalamus, basis pontis, and/or cerebellum, occasionally preceded by transient symptoms, due to occlusion or stenosis of small penetrating branches of the middle and posterior cerebral and median branches of the basilar arteries; resolution of infarcts is characterised by residual 1–3-mm cavities or lacunae, characteristic of long-standing hypertension
lacunar infarct Small vessel diseae Neurology Any of multiple small cerebral infarcts in the corona radiata, internal capsule, striatum, thalamus, basis pontis, cerebellum, occasionally preceded by transient Sx, due to occlusion or stenosis
of small penetrating branches of the middle and posterior cerebral and median branches of the basilar arteries; resolution of infarcts is characterized by residual 1-3 mm cavities or lacunae, characteristic of long-standing HTN Clinical Pure motor
hemiparesis, pure sensory stroke, ataxic hemiparesis, sensorimotor stroke. See Lacunar state, Multi-infarct dementia. Cf Hemorrhagic stroke. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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Subjects with a lacunar infarction due to small penetrating artery occlusion are often considered "minor" stroke by both laymen and many clinicians. Cranial magnetic resonance imaging (MRI) performed 10 days after the onset showed an infarction in the left ventromedial part of the upper mesencephalon and old multiple chronic lacunar infarctions in the deep white matter of the cerebral hemispheres (Figure 1C) Over the next week her hemiparesis resolved completely and her diplopia was getting better. 8 percent of the participants had the silent lacunar infarctions, small areas of damage to the brain seen on MRI that never caused obvious symptoms. |
Lacunar Infarction |
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