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Unformatted text preview: • Thought to be due to vascular changes of hypertension and atherosclerosis – Usually basal ganglia, thalamus, cerebellum, or pons due to lenticulostriae arteries Risk Factors Carotid Artery Stenosis Due to atherosclerosis Usually effects ACA, MCA and opthalmic artery (ipsilateral one eye blindness) May be revealed by bruit Arterial Dissection Head or neck trauma Tunica intima tear of carotid or vertebral arteries Blood flows into the tear and the wall balloons out Thrombi form here Carotid dissection often presents with ipsilateral turbulent sound with heart beat and Horner’s syndrome Vertebral artery dissection leads to suboccipital headache, posterior neck pain...
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- Winter '11
- carotid artery stenosis, Vertebral artery dissection, MCA inferior division, MCA superior division