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Table of Contents    
NEUROIMAGE
Year : 2021  |  Volume : 69  |  Issue : 6  |  Page : 1901-1902

Infarction Due to Occlusion of Artery of Percheron


1 Department of Neurology, Norvic International Hospital, Thapathali, Kathmandu, Nepal
2 Department of Anaesthesiology, Tribhuvan University Teaching Hospital, Maharajgunj, Kathmandu, Nepal

Date of Submission01-Oct-2018
Date of Decision27-Jul-2019
Date of Acceptance12-Nov-2019
Date of Web Publication23-Dec-2021

Correspondence Address:
Dr. Gentle S Shrestha
Department of Anaesthesiology, Tribhuvan University Teaching Hospital, Institute of Medicine, Maharajgunj, Kathmandu - 44600
Nepal
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0028-3886.333521

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How to cite this article:
Jalan P, Shrestha GS. Infarction Due to Occlusion of Artery of Percheron. Neurol India 2021;69:1901-2

How to cite this URL:
Jalan P, Shrestha GS. Infarction Due to Occlusion of Artery of Percheron. Neurol India [serial online] 2021 [cited 2022 Jan 26];69:1901-2. Available from: https://www.neurologyindia.com/text.asp?2021/69/6/1901/333521




A 68-year-old man presented with sudden onset of altered level of consciousness with the right visual field defect. The diffusion-weighted imaging sequence of MRI demonstrated acute infarct in bilateral paramedian thalamus [Figure 1], left medial temporal lobe, (left posterior cerebral artery territory) [Figure 2] along with the splenium [Figure 3] (indicated by arrows). Over the next few weeks, his level of consciousness improved, but he developed alexia without agraphia. The arteries supplying the thalamus mainly arise from the top of basilar artery and proximal posterior cerebral artery. Sometimes, the arteries bifurcate after their origin, giving rise to the artery of Percheron. In this rare vascular variant, a single dominant thalamoperforating artery arises from one P1 segment of posterior cerebral artery and bifurcates to supply both paramedian thalami. The occlusion of this uncommon vessel results in a characteristic pattern of infarction involving bilateral paramedian thalami with or without mesencephalic involvement. The development of alexia and agraphia correlates with infarction of splenium.[1],[2],[3]
Figure 1: Diffusion-weighted imaging (DWI) sequence demonstrating acute infarct in bilateral paramedian thalamus

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Figure 2: DWI sequence demonstrating acute infarct in left medial temporal lobe

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Figure 3: DWI sequence demonstrating acute infarct along with the splenium

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Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
Arauz A, Patino-Rodriguez HM, Vargas-Gonzalez JC, Arguelles-Morales N, Silos H, Ruiz-Franco A, et al. Clinical spectrum of artery of Percheron infarct: Clinical-radiological correlations. J Stroke Cerebrovasc Dis 2014;23:1083-8.  Back to cited text no. 1
    
2.
Aaron S, Mani S, Prabhakar AT, Karthik K, Patil AK, Babu PS, et al. Stuck with a drowsy patient, evoke the Percheron. Neurol India 2015;63:542-7.  Back to cited text no. 2
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3.
Li S, Sun X, Bai Y, Qin H, Wu X, Zhang X, et al. Infarction of the corpus callosum: A retrospective clinical investigation. PLoS One 2015;10:e0120409.  Back to cited text no. 3
    


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