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Distal basilar perforator artery aneurysm: case report
Z Ghogawala1, J M Shumacher, C S Ogilvy
1Department of Cerebrovascular Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, USA.
Neurosurgery
|August 1, 1996
Summary
This study reports the first case of a cerebral aneurysm originating from a rostral basilar perforating artery. Understanding this rare anatomical variation is crucial for preventing surgical complications during aneurysm treatment.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Cerebral Anatomy
Background:
- Distal basilar artery aneurysms are rare, comprising 5-8% of intracranial aneurysms.
- Preserving basilar apex perforating vessels is critical during surgery in this region.
Observation:
- A 56-year-old woman with subarachnoid hemorrhage had an initial angiogram negative for the source.
- A follow-up angiogram revealed a small aneurysm near the left superior cerebellar artery.
Findings:
- A left pterional craniotomy identified an aneurysm originating from a distal basilar perforating artery.
- The aneurysm was successfully obliterated, preserving flow in the perforating vessel.
Implications:
- This case demonstrates a novel anatomical origin for cerebral aneurysms.
- Awareness of this entity aids in preventing surgical injury and aneurysmal rupture.