V sign (midbrain)
Citation, DOI, disclosures and article data
Citation:
Sharma R, V sign (midbrain). Reference article, Radiopaedia.org (Accessed on 09 Dec 2024) https://doi.org/10.53347/rID-185039
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rID:
185039
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Disclosures:
At the time the article was created Rohit Sharma had no financial relationships to ineligible companies to disclose.
View Rohit Sharma's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Rohit Sharma had no financial relationships to ineligible companies to disclose.
View Rohit Sharma's current disclosures
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Systems:
Sections:
Synonyms:
- V sign (stroke)
- V sign (ischaemic stroke)
The V sign is a radiological sign described in ischemic stroke in the territory of the artery of Percheron when affecting the midbrain.
The V sign describes refers to the hyperintensity seen on axial FLAIR and DWI MRI along the pial surface of the midbrain that forms the posterior wall of the interpeduncular fossa, which resembles the letter V 1-4. This sign is positive in 30-67% of patients with artery of Percheron infarction involving the midbrain 1,2.
References
- 1. Lazzaro N, Wright B, Castillo M et al. Artery of Percheron Infarction: Imaging Patterns and Clinical Spectrum. AJNR Am J Neuroradiol. 2010;31(7):1283-9. doi:10.3174/ajnr.A2044 - Pubmed
- 2. Aaron S, Mani S et al. Stuck with a Drowsy Patient, Evoke the Percheron. Neurol India. 2015;63(4):542. doi:10.4103/0028-3886.162045 - Pubmed
- 3. Vinod K, Kaaviya R, Arpita B. Artery of Percheron Infarction. Ann Neurosci. 2016;23(2):124-6. doi:10.1159/000443570 - Pubmed
- 4. Li J, Ge J, Yang S, Yao G. Clinical Review and Analysis of Artery of Percheron Infarction. IBRO Neuroscience Reports. 2023;15:17-23. doi:10.1016/j.ibneur.2023.04.006 - Pubmed
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