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20 Cards in this Set
- Front
- Back
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What are the distribution of ACA, MCA, PCA ?
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ACA: medial surface
MCA: most of the surface PCA: inferior surface, posterior hemisphere |
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How are cerebral infarct classified?
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1. due to: thrombotic-embolic
2. due to: vessel diseases 3. due to: global hypoxia/ischaemia |
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Give some examples of large vessel diseases
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1. thrombus in carotid bifurcation, basillar artery
2. embolism in MCA |
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Give some examples of small vessel diseases
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1. lenticulostriate arteries causing cerebral hemorrhage and lacunar infact
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What is the significance of acute cerebral infarct?
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Acute swelling and herniation
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What is the pathological change of an infarct after a few months?
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Liquefactive necrosis.
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What is the characteristic of embolic infarcts?
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haemorrhagic and multiple
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What is lacunar infarct?
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Small infarct, due to occlusion of small penetrating artery to the deep brain
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What are the ususal place of lacunar infarct?
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1. deep nuclei
2. pons 3. posterior limb of internal capsule |
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How is lacunar infarct present?
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Asymptomatic or
pure motor stroke or pure sensory stroke |
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Give some examples that will lead to global hypoxia
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1. circulatory collapse
2. severe episode of epilepsy 3. severe hypoglycaemia |
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What is the most common cause of cerebral hemorrhage?
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Hypertension
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Other causes of cerebral hemorrhage?
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1. microaneurysm
2. small vessel disease 3. leukemia 4. Berry aneurysm |
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Give one cerebral hemorrhagic disease that is associated with Alzheimer's disease.
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Cerebral amyloid angiopathy (CAA).
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What are the features of the above disease?
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Lobar hemorrhage in occipital/parietal lobe, involving superficial cortical vessels
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Give 2 causes of subarachnoid hemorrhage
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1. aneurysm
2. AV malformation |
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Give 3 types of intracranial aneurysm
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1. Berry aneurysm
2. Fusiform atherosclerotic aneurysm 3. Infective mycotic aneurysm |
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Give 3 aetioglogies of Berry aneurysm
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1. Hypertension
2. Marfan's syndrome 3. Collagen systhesis defect |
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Where is blood in SAH easily collected in?
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Basal cisterns
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What is the complication of SAH?
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1. Rebleeding
2. vasospasm 3. hydrocephalus 4. cardiac arrhythmias |
