From the case:
Bilateral A1 fenestration
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Info
![](https://prod-images-static.radiopaedia.org/images/19377/151abaa427415d8187ee2bf4bd6b5d_big_gallery.jpeg)
Incidental note of bilateral A1 segment fenestration.
From the case:
Bilateral A1 fenestration
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Info
![](https://prod-images-static.radiopaedia.org/images/19373/fdc97e53e73d79442489f10783f219_big_gallery.jpeg)
Zoomed image showing bilateral fenestrated A1 segments.
Case Discussion
Incidental bilateral fenestration of the A1 segments of the anterior cerebral artery.