Posterior inferior cerebellar artery (PICA) infarct

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Posterior inferior cerebellar artery (PICA) occlusion may cause infarction of any of the vascular territory of the PICA, namely the posterior inferior cerebellum, inferior cerebellar vermis and lateral medulla.

Epidemiology

Typically considered the most common territory involved in cerebellar infarction, although at least one study ¹ has demonstrated similar frequencies of PICA and SCA infarcts.

Clinical presentation

Vertigo, nausea and truncal ataxia are the most common presenting features. Signs of a lateral medullary syndrome may coexist in ~30% ².

-<p><strong>Posterior inferior cerebellar artery (PICA) occlusion</strong> may cause infarction of the posterior inferior cerebellum, inferior cerebellar vermis and lateral medulla.</p><h4>Epidemiology</h4><p>Typically considered the most common territory involved in <a href="/articles/cerebellar-infarction">cerebellar infarction</a>, although at least one study <sup>1</sup> has demonstrated similar frequencies of PICA and SCA infarcts.</p><h4>Clinical presentation</h4><p>Vertigo, nausea and truncal ataxia are the most common presenting features. Signs of a <a href="/articles/lateral-medullary-syndrome">lateral medullary syndrome</a> may coexist in ~30% <sup>2</sup>.</p>
+<p><strong>Posterior inferior cerebellar artery (PICA) occlusion</strong> may cause infarction of any of the vascular territory of the <a title="Posterior inferior cerebellar artery" href="/articles/posterior-inferior-cerebellar-artery">PICA</a>, namely the posterior inferior cerebellum, inferior cerebellar vermis and lateral medulla.</p><h4>Epidemiology</h4><p>Typically considered the most common territory involved in <a href="/articles/cerebellar-infarction">cerebellar infarction</a>, although at least one study <sup>1</sup> has demonstrated similar frequencies of PICA and SCA infarcts.</p><h4>Clinical presentation</h4><p>Vertigo, nausea and truncal ataxia are the most common presenting features. Signs of a <a href="/articles/lateral-medullary-syndrome">lateral medullary syndrome</a> may coexist in ~30% <sup>2</sup>.</p>

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Posterior inferior cerebellar artery (PICA) infarct

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