Azygos anterior cerebral artery

Case contributed by Dr Bruno Di Muzio


Incidental finding.

Patient Data

Age: 22
Gender: Female

MRI Brain and MRA

There is a single trunk forming the A2 segment of ACAs. The left A1 ACA is hypoplastic and dives a hypoplastic A2 which ends below the level of genu of corpus callosum. 

Case Discussion

This case demonstrates a rare anatomical variant called Azygos anterior cerebral artery (azygos-ACA) characterised by a common trunk in the A2 segment (above the anterior communicating artery) 1.

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Case information

rID: 39555
Case created: 9th Sep 2015
Last edited: 4th Dec 2016
Inclusion in quiz mode: Included

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