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8 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Weber Syndrome
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Midbrain infarction resulting from occlusion of the paramedian branches of the POSTERIOR CEREBRAL ARTERY
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Cerebral peduncle lesion - contralateral spastic paralysis
Occulomotor nerve palsy - ipsilateral ptsosis, pupillary dilation, and lateral strabismus (EYE LOOKS DOWN AND OUT) |
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Medial medullary syndrome
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Occlusion of a paramedian branch of anterior spinal artery - median portion rostral medulla
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Contralateral spastic hemiparesis (pyramid/cotricospinal tract)
Contralateral tacticle and kinesthetic defects (medial leminscus) Tongue deviates towards side of lesion |
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Wallenberg syndrome (lateral medullary syndrome)
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Occlusion of posterior inferior cerebellar arteries - lateral portion of rostral medulla
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Loss of pain and temp over contralateral body (spinothalamic)
Loss of pain and temp over ipsilateral face (trigeminothalamic tract) Hoarseness, difficulty swallowing, loss of gag reflex (nucleus ambiguus) Ipsilateral horner's Vertigo, nystagmus, nausea/vomitting (vestibular nuclei) Ipsilateral cerebellar defects (ataxia) |
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Lateral striate artery
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Affects striatum, internal capsule
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Common location of lacunar infarcts from 2nd hypertension, contralateral hemiparesis and hemiplegia
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Medial inferior pontine syndrome
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Occlusion of branch of basilar artery - infract of medial aspect of inferior pons
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Contralateral spastic hemiparesis (corticospinal)
Contralateral loss of light touch/vibratory/kinesthetic (medial lemniscus) Paralysis gaze to side of lesion (PPRF) Ipsilateral paralysis to lateral rectus muscle |
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Locked in syndrome
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Basillar
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Lateral inferior pontine syndrome
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Occlusion of AICA - infarct lateral aspect of inferior pons
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Ipsilateral facial nerve paralysis (facial nucleus)
Ipsilateral loss of taste from anterior 2/3 of tongue (solitary nucleus) Ipsilateral deafness and tinnitus Nystagmus, vertigo, nausea.vomitting Ipsilateral limb and gait ataxia Ipsilateral loss of pain and temperature Ipsilateral Horner's NO PARALYSIS OR LOSS LIGHT TOUCH/VIBRATORY |
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Lateral superior pontine syndrome
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Occlusion AICA in the superior/rostral pons
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Ipsilateral loss of taste from anterior 2/3
Ipsilateral limb and gait ataxia Ipsilateral loss of pain and temp sensation from face Ipsilateral loss of light touch and vibration from face Ipsilateral jaw weakness and deviation of jaw toward side of lesion Contralateral loss of pain and temperature sensation from body Ipsilateral Horner's |
