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Updated: Apr 11, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
An unusual, duplicate origin of the anterior choroidal artery with aneurysm: a case report
Louis Chenin1, Cyril Chivot2, Patrick Toussaint3
1Department of Neurosurgery, Amiens University Hospital, Avenue René Laënnec, Salouël, 80054, Amiens Cedex 1, France. louis.chenin@neurochirurgie.fr.
Background And Importance:
Aneurysms of the anterior choroidal artery (AChoA) are rare and often difficult to treat. Variations may be present and must be identified prior to treatment. We report a unique case of a ruptured aneurysm located at the origin of a duplicate branch of the AChoA.
Clinical Presentation:
A 56-year-old male was admitted to our university hospital for coma. A brain CT scan showed a subarachnoid hemorrhage, and CT angiography revealed a duplication of the right AChoA, with an aneurysm located at the branch's origin. We decided to embolize this aneurysm. Four weeks later, our patient was able to transfer to the rehabilitation unit.
Conclusion:
To the best of our knowledge, this is one of the first descriptions of an aneurysm located at the origin of a duplicate branch of the AChoA.
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