Posterior inferior cerebellar artery (PICA) infarct

Posterior inferior cerebellar artery (PICA) occlusion may cause infarction of 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.

Stroke and intracranial haemorrhage
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Article information

rID: 19247
Section: Gamuts
Tags: stroke, refs
Synonyms or Alternate Spellings:
  • PICA infarct
  • Posterior inferior cerebellar arterial infarct
  • Posterior inferior cerebellar artery (PICA) infarction
  • Posterior inferior cerebellar artery infarction
  • Posterior inferior cerebellar arterial infarction
  • PICA stroke
  • PICA infarction

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Cases and figures

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    Figure 1: vascular territories
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    Case 1
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    PICA infarct
    Case 2
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    Case 3
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    Case 4
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    Case 5
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    PICA infarct : FLAIR
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    Case 7
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    Case 8
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    Case 9
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