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Causes
By Mayo Clinic staff
Brain aneurysms develop as a result of thinning and degenerating artery walls. Aneurysms often form at forks or branches in arteries because those sections of the vessel are weaker. Although aneurysms can appear anywhere in the brain, they are most common in arteries at the base of the brain.
References
- Cerebral aneurysm fact sheet. National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/disorders/cerebral_aneurysm/detail_cerebral_aneurysm.htm. Accessed Feb. 28, 2011.
- Singer RJ, et al. Treatment of aneurysmal subarachnoid hemorrhage. http://www.uptodate.com/home/index.html. Accessed Feb. 18, 2011.
- Cerebral aneurysm. American Association of Neurological Surgeons. http://www.aans.org/Patient%20Information/Conditions%20and%20Treatments/Cerebral%20Aneurysm.aspx. Accessed Feb. 28, 2011.
- Singer RJ, et al. Unruptured intracranial aneurysms. http://www.uptodate.com/home/index.html. Accessed Feb. 18, 2011.
- Westerlaan HE, et al. Intracranial aneurysms in patients with subarachnoid hemorrhage: CT angiography as a primary examination tool for diagnosis - a systematic review and meta-analysis. Radiology. 2011;258:134.
- Naggara ON, et al. Endovascular treatment of intracranial unruptured aneurysms: Systematic review and meta-analysis of the literature on safety and efficacy. Radiology. 2010;256:887.
- Hacein-Bey L, et al. Current imaging assessment and treatment of intracranial aneurysms. American Journal of Roentgenology. 2011;196:32.
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