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Open AccessArticle

Characteristics of Clinical Symptoms, Cerebral Images and Stroke Etiology in Vertebro-Basilar Artery Fenestration-Related Infarction

Department of Neurology, Juntendo University School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Brain Sci. 2020, 10(4), 243; https://doi.org/10.3390/brainsci10040243
Received: 7 April 2020 / Revised: 17 April 2020 / Accepted: 19 April 2020 / Published: 20 April 2020
(This article belongs to the Special Issue Stroke Treatments and Therapies)
Cerebral artery fenestration is a rare variant of the vascular architecture, but its existence is well documented. The common site of fenestration is the vertebra-basilar artery and it may be found incidentally with subarachnoid hemorrhage. However, fenestration-related cerebral infarction is rare. We analyzed the clinical characteristics, stroke etiology, and image findings of fenestration-related cerebral infarction of the vertebrobasilar artery. We reviewed our hospital records and previously published reports to find cases of fenestration-related cerebral infarction. We excluded those with unknown clinical features or radiological findings. We retrieved 4 cases of fenestration-related infarction from our hospital, in which vascular change, headache, vertigo/dizziness, and dissection in stroke etiology were detected. In eight previously reported cases of fenestration-related infarction, similar vascular changes were noted, but they were mainly diagnosed as embolic stroke of undetermined source. However, based on the criteria for dissection in this study, dissection as the stroke etiology was suspected in the previously reported cases. Many hypotheses have been proposed for the development of dissection, thrombus, and aneurysms in fenestration. Although an embryological and morphological study is needed, clinicians must consider basilar artery fenestration-related infarction as a differential diagnosis and intensive non-invasive image study is recommended. View Full-Text
Keywords: fenestration; cerebral infarction; dissection; Magnetic resonance imaging (MRI); basi-parallel anatomic scanning magnetic resonance imaging (BPAS); embolic stroke of undetermined source (ESUS) fenestration; cerebral infarction; dissection; Magnetic resonance imaging (MRI); basi-parallel anatomic scanning magnetic resonance imaging (BPAS); embolic stroke of undetermined source (ESUS)
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Miyamoto, N.; Ueno, Y.; Hira, K.; Kijima, C.; Nakajima, S.; Yamashiro, K.; Hattori, N. Characteristics of Clinical Symptoms, Cerebral Images and Stroke Etiology in Vertebro-Basilar Artery Fenestration-Related Infarction. Brain Sci. 2020, 10, 243.

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