Presentation
Underwent MRI for visual problems. MRI did not reveal parenchymal abnormalities.
Patient Data
Age: 55 years
Gender: Male
Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.
From the case:
Anterior cerebral arterial variations
![](https://prod-images-static.radiopaedia.org/images/636680/ae8fc6ea2071b0844935d1fba07bcc_thumb.jpg)
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![](https://prod-images-static.radiopaedia.org/images/636683/c443bc063988d7a1aab08f0b7f01d5_thumb.jpg)
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![](https://prod-images-static.radiopaedia.org/images/636679/a95fd2fef5bf0b631710eaafb8ded5_thumb.jpg)
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Info
![](https://prod-images-static.radiopaedia.org/images/636680/ae8fc6ea2071b0844935d1fba07bcc_big_gallery.jpg)
MRI angiography reveals:
- duplicated/fenestrated A1 segment on the right side.
- common A2 trunk which divides into two A3 segments.
- this is different from Azygous ACA - as there is no common trunk for the entire tree (according to Lasjunias-Bernstein classification)
- no ACom
Case Discussion
This case shows two recognized arterial variations of the anterior cerebral artery, fenestrated A1 segment and common trunk of A2 segment, incidentally detected on MR angiography.