Bilateral thalamic infarction secondary to artery of Percheron occlusion: A rare cause of acute coma

James E. Brady; Keith Brown; Raqiya Shoaib; David Roshal

doi:10.5430/crim.v7n4p17

Case Reports in Internal Medicine ›› 2020, Vol. 7 ›› Issue (4) :17 -20. DOI: 10.5430/crim.v7n4p17

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Bilateral thalamic infarction secondary to artery of Percheron occlusion: A rare cause of acute coma

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Abstract

An occlusion of the artery of Percheron (AOP) is a rare clinical condition that remains a diagnostic challenge for physicians given its variable presentation. This infarction is a result of an anatomical variant of a single vessel arising from the posterior cerebral artery. Occlusion of the AOP results in variable levels of alteration of consciousness, vertical gaze palsy, and memory impairment. Unfortunately, due to this variable presentation these strokes are often missed. We report a case of a 71 year-old-female who presented with sudden onset of unresponsiveness who was subsequently diagnosed with bilateral thalamic infarction with midbrain involvement secondary to AOP occlusion. Delayed diagnosis can result in poor neurologic outcomes as demonstrated in this case making it imperative to bring further awareness to this clinical syndrome.

Keywords

Bilateral thalamic stroke / Cerebrovascular accident / Coma / Artery of Percheron / Stroke

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James E. Brady, Keith Brown, Raqiya Shoaib, David Roshal. Bilateral thalamic infarction secondary to artery of Percheron occlusion: A rare cause of acute coma. Case Reports in Internal Medicine, 2020, 7(4): 17-20 DOI:10.5430/crim.v7n4p17

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