Arc sign (CARASIL)
Citation, DOI, disclosures and article data
Citation:
Gaillard F, Arc sign (CARASIL). Reference article, Radiopaedia.org (Accessed on 21 Mar 2025) https://doi.org/10.53347/rID-67306
rID:
67306
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At the time the article was created Frank Gaillard had no recorded disclosures.
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Disclosures:
At the time the article was last revised Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosures
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The arc sign has been described in late-stage CARASIL and is seen on axial T2 weighted images. It describes high signal extending from one middle cerebellar peduncle, across the pons, to the contralateral middle cerebellar peduncle 1.
References
- 1. Hiroaki Nozaki, Yumi Sekine, Toshio Fukutake, Yoshinori Nishimoto, Yutaka Shimoe, Akiko Shirata, Sohei Yanagawa, Mikio Hirayama, Masato Tamura, Masatoyo Nishizawa, Osamu Onodera. Characteristic features and progression of abnormalities on MRI for CARASIL. (2015) Neurology. 85 (5): 459. doi:10.1212/WNL.0000000000001803 - Pubmed
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