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11 Cards in this Set
- Front
- Back
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Hemiparesis Horner's syndrome Inferior Cerebellar Peduncle lesion |
Weakness in entire side of body - caused from corticospinal lesion (happens in medial lesions) Descending sypmathetic - MAPH (miosis, anhydrosis, ptosis, flushing) Ipsalateral ataxia (usually connects rostral medulla & cerebellum |
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Lateral Medullary Lesion |
AKA Wallenberg/PICA syndrome IX, X, X (nucleus ambiguus - hoarseness); SST, descending Vth nerve (ipsalateral pain & temp in face), Horner's (ipsa symp) |
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Medial Medullary Lesion |
AKA Heulings Jackson (from anterior spinal artery damage) CST, XII (contra tongue), ML |
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Blood supply of pons |
AICA & basilar artery (circumferential branches = lateral pontine arteries |
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Lateral Pontine Syndrome |
SST (pain & temp body contra), ipsa pain & temp face, ipsa paralysis of face (LMN type) - VII, ipsa ataxia (MCP), face sensation & mastication (V) |
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Rules for Medial vs Lateral syndromes |
Medial - contra hemiparesis (UMN/CST), normal facial Lateral - No hemiparesis, ipsa pain & temp face (spinal V), ipsa ataxia (M & ICP) |
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Medial Pontine Syndrome |
CST - contra hemiparesis, ipsalateral paralysis of eye abduction (CN VI) |
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Medial Midbrain Syndrome |
AKA Weber Syndrome CST - contra hemiparesis, ipsa IIIrd nerve palsy |
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IIIrd nerve palsy |
Ptosis, pupil dilation, oculomotor palsy, contralateral hemiparesis |
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Lesion extrinsic to stem |
AKA vestibular schwannoma, acoustic neuroma Begin with CN signs (vestibular before cochlear, later involvement of V & VII) Later - long tract signs (ataxia (MCP), hemiparesis (CST) |
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Basilar Artery Occlusion |
AKA Adams & Kubick Both CSTs (bilateral hemiparesis), bilateral sensory loss (ascending systems), either locked-in or coma if reticular system is spared or knocked out, respectively |
