Anterior cerberal artery fenestration

Case contributed by Henry Knipe

Presentation

Previous presentation ?SAH. Follow-up of suspected left A2 origin aneurysm.

Patient Data

Age: 60
Gender: Female

Previously described suspected left A2 origin aneurysm represents a fenestration of this vessel.

Previously described suspected left A2 origin aneurysm represents a fenestration of this vessel.

Case Discussion

Fenestration is a normal anatomical variant. Fenestration of the ACOM artery is more common than fenestration of the ACA. Studies have reported an incidence of 0-4% of A1 segment fenestration and ~0.6% on DSA studies 1.Link

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