IMPORTANT: We currently have a number of bugs related to image cropping and are actively trying to resolve them. In the meantime, we have disabled cropping. Apologies for any inconvenience. Stay informed: radiopaedia.org/chat

Azygos anterior cerebral artery

Case contributed by Roberto Schubert
Diagnosis certain

Presentation

Left temporal headaches, EEG focus.

Patient Data

Age: 20 years
Gender: Female

Both A1 segments from anterior cerebral arteries form one unique trunk called azygos artery. 

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

Case Discussion

Azygos anterior cerebral artery is an uncommon to rare variant seen in which the two A1 segments of the anterior cerebral artery (ACA) join to form a single trunk. As a result, no anterior communicating artery is present.

It is important to be aware that this variant is associated with numerous cerebral malformations and with berry aneurysms. 

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.