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Updated: Jun 21, 2026
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Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
Persistent primitive olfactory artery aneurysm
Tetsuya Yamamoto1, Kensuke Suzuki, Tomosato Yamazaki
1Department of Neurosurgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan.
Neurologia Medico-Chirurgica
|July 28, 2009
Summary
A rare persistent primitive olfactory artery (POA) aneurysm was found incidentally in a hypertensive patient. This olfactory artery aneurysm, alongside an anterior communicating artery aneurysm, was successfully treated with surgical clipping.
Area of Science:
- Neuroscience
- Vascular Surgery
- Neuroradiology
Background:
- Persistent primitive olfactory artery (POA) is a rare anatomical variant.
- Aneurysms of the POA are exceptionally uncommon, with limited case reports in medical literature.
- Incidental discovery of vascular anomalies necessitates careful evaluation and management strategies.
Observation:
- A 69-year-old male with hypertension presented with an incidentally discovered non-ruptured aneurysm.
- The aneurysm was located at the acute angle formed by the persistent POA and the anterior cerebral artery.
- The patient also had a coexisting wide-necked anterior communicating artery aneurysm.
Findings:
- Successful surgical clipping was performed for both the persistent POA aneurysm and the anterior communicating artery aneurysm.
- The anatomical course of the POA, originating from the internal carotid artery and running towards the crista galli, was noted.
- The specific location of the POA aneurysm at the junction with the anterior cerebral artery was a key characteristic.
Implications:
- This case highlights the importance of recognizing and managing rare cerebrovascular anomalies.
- Surgical clipping remains a viable option for treating complex aneurysms involving rare arterial variants.
- Further research into the natural history and optimal treatment of persistent POA aneurysms may be warranted.
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