NEUROLOGY
CEREBELLAR SYNDROME
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Anterior spinal artery
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Anterior inferior cerebellar artery
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Posterior inferior cerebellar artery
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Posterior spinal artery
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Detailed explanation-1: -Lateral medullary syndrome results from a vascular event in the lateral part of the medulla oblongata. The arteries commonly involved in lateral medullary syndrome are the posterior inferior cerebellar artery or the vertebral artery.
Detailed explanation-2: -The posterior inferior cerebellar artery (PICA) is the vessel that perfuses the lateral medulla, and is usually occluded due to thrombosis or embolism in its parent vessel, the vertebral artery.
Detailed explanation-3: -From caudal to rostral, obstruction of the posterior inferior cerebellar artery (PICA, also the most frequent location for a cerebellar infarct) leads to a headache and less commonly vomiting, vertigo, horizontal ipsilateral nystagmus, and truncal ataxia.