Redefining Thalamic Vascularization Vicariously Through Gerald Percheron: A Historical Vignette

Agarwal, Nitin; Chaudhari, Amit; Hansberry, David R.; Prestigiacomo, Charles J.

doi:10.1016/j.wneu.2013.01.030

Cited by 23 publications

(21 citation statements)

References 14 publications

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“…Commonly the paramedian territory of the thalamus is supplied by perforating arteries arising from ipsilateral posterior cerebral arteries, but very rarely all perforating branches arise from one posterior cerebral artery through a single trunk called the artery of Percheron. This variant represents 0.1-2% of total ischemic strokes and of thalamic strokes, this artery is the cause for 4-10% of presented cases [1][2][3][4].…”

Section: Introductionmentioning

confidence: 98%

Stroke Involving the Percheron Artery: A Rare Anatomical Variant

et al. 2018

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Artery of Percheron is a rare anatomical variant of posterior cerebral circulation. Stroke involving this artery causes characteristic bilateral thalamic infarcts. Here, we report a case of artery of Percheron infarction in a 53-year-old man with hypertension and diabetes. Our case highlights the importance of raising our awareness about the artery of Percheron and the prompt recognition of its infarction by pursuing appropriate imaging studies to allow timely administration of thrombolysis. Reversal of a potential damaging neurological insult and subsequent favorable clinical improvement are the expected outcomes.

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Section: Introductionmentioning

confidence: 98%

Stroke Involving the Percheron Artery: A Rare Anatomical Variant

et al. 2018

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“…The occlusion of this artery should be considered in the differential diagnosis of bilateral thalamic lesions, in which the patient often presents with altered mental status, mainly somnolence. Worldwide, the occlusion of this artery is responsible for 0.1 to 2% of ischemic strokes [ 1 ]. This anatomical variant is estimated to exist in 4-11.7% of the general population [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Bilateral Thalamic Ischemic Stroke Secondary to Occlusion of the Artery of Percheron

García‐Grimshaw¹,

Peschard-Franco

Gutiérrez-Manjarrez

2018

Cureus

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The occlusion of the artery of Percheron (AOP) is a rare condition that causes bilateral thalamic ischemic stroke with or without midbrain involvement. It happens as a result of an anatomical variant of the diencephalic irrigation, in which the thalamic paramedian arteries arise from a common trunk from the posterior cerebral artery (PCA), which generates a clinical syndrome characterized by bilateral vertical gaze palsy, memory impairment and hypersomnia. In this case, we report a 62-year-old woman admitted to the emergency room with altered mental status, mainly somnolence. On physical examination, she was somnolent, apathetic and with no motor deficit. Magnetic resonance imaging (MRI) of the brain demonstrated bilateral thalamic hyperintensities and midbrain involvement in diffusion-weighted imaging (DWI) and T2 sequences, suggesting occlusion of the AOP. Bilateral thalamic infarction due to this anatomical variant is an entity with a low prevalence, and its diagnosis can be delayed because of the wide spectrum of clinical signs.

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“…1 Consequently, its infarct is rare with one case of thrombolysis described, 2 and typically characterised by bilateral paramedian thalamic changes and a midbrain 'V' sign on MRI. 1 Consequently, its infarct is rare with one case of thrombolysis described, 2 and typically characterised by bilateral paramedian thalamic changes and a midbrain 'V' sign on MRI.…”

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confidence: 99%

“…The artery of Percheron is an uncommon variant of the paramedian thalamic-mesencephalic vasculature, existing as a single trunk branching from the proximal segment of the posterior cerebral artery. 1 Consequently, its infarct is rare with one case of thrombolysis described, 2 and typically characterised by bilateral paramedian thalamic changes and a midbrain 'V' sign on MRI. 3 The index case does query the prevalence of the artery of Percheron, or other variants of midbrain circulation, in levodopa-responsive parkinsonism.…”

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confidence: 99%