Intracranial aneurysm (overview)
Last revised by Calum Worsley on 28 Apr 2022
Citation, DOI, disclosures and article data
Citation:
Deng F, Worsley C, Kite D, Intracranial aneurysm (overview). Reference article, Radiopaedia.org (Accessed on 18 Apr 2024) https://doi.org/10.53347/rID-80955
rID:
80955
Article created:
10 Aug 2020,
Francis Deng ◉
Disclosures:
At the time the article was created Francis Deng had no recorded disclosures.
View Francis Deng's current disclosures
Last revised:
28 Apr 2022,
Calum Worsley ◉
Disclosures:
At the time the article was last revised Calum Worsley had no financial relationships to ineligible companies to disclose.
View Calum Worsley's current disclosures
Revisions:
4 times, by
3 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Cerebral aneurysms
- Intracranial aneurysms
- Cerebral aneurysm
- Intracranial aneurysm
Intracranial aneurysms, also called cerebral aneurysms, are aneurysms of the intracranial arteries. The most common morphologic type is the saccular aneurysm.
Pathology
There is not a universal classification for the types of intracranial aneurysms, resulting in a heterogeneous mix of terms based on the morphology, size, location, and etiology 1,2:
- saccular intracranial aneurysm
- fusiform intracranial aneurysm
- blood blister-like aneurysm
- dissecting intracranial aneurysm
- mycotic (infectious) intracranial aneurysm
- traumatic intracranial aneurysm
- neoplastic (oncotic) intracranial aneurysm
Classification
Varying risk stratification models are utilized. These commonly include risk factors such as age, ethnicity, presence of subarachnoid hemorrhage, size and location of aneurysm.
- PHASES risk prediction score 3
- ISUA-II 4
- UCAS 5
Quiz questions
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References
- 1. Bonneville F, Sourour N, Biondi A. Intracranial Aneurysms: An Overview. Neuroimaging Clin N Am. 2006;16(3):371-82, vii. doi:10.1016/j.nic.2006.05.001 - Pubmed
- 2. Mizutani T, Miki Y, Kojima H, Suzuki H. Proposed Classification of Nonatherosclerotic Cerebral Fusiform and Dissecting Aneurysms. Neurosurgery. 1999;45(2):253-9; discussion 259. doi:10.1097/00006123-199908000-00010 - Pubmed
- 3. Greving J, Wermer M, Brown R et al. Development of the PHASES Score for Prediction of Risk of Rupture of Intracranial Aneurysms: A Pooled Analysis of Six Prospective Cohort Studies. Lancet Neurol. 2014;13(1):59-66. doi:10.1016/s1474-4422(13)70263-1
- 4. Wiebers D, Whisnant J, Huston J et al. Unruptured Intracranial Aneurysms: Natural History, Clinical Outcome, and Risks of Surgical and Endovascular Treatment. Lancet. 2003;362(9378):103-10. doi:10.1016/s0140-6736(03)13860-3 - Pubmed
- 5. Morita A, Kirino T, Hashi K et al. The Natural Course of Unruptured Cerebral Aneurysms in a Japanese Cohort. N Engl J Med. 2012;366(26):2474-82. doi:10.1056/NEJMoa1113260 - Pubmed
Incoming Links
Articles:
- CT angiography of the circle of Willis (protocol)
- Arterial transit artifact
- PHACE syndrome
- Neoplastic intracranial aneurysm
- Basilar artery aneurysm
- PHASES risk prediction score
- Posterior communicating artery duplication
- Vertebral artery
- Trigeminal autonomic cephalgia
- Saccular cerebral aneurysm
- Anterior cerebral artery
- Persistent primitive olfactory artery
- Seckel syndrome
- Cerebellar haemorrhage
- Medical abbreviations and acronyms (U)
- O'Kelly-Marotta grading scale
- Parry-Romberg syndrome
- Subdural haemorrhage
Cases:
- Vertebral artery aneursym (giant)
- Cerebral aneurysm - terminal internal carotid artery
- Massive cavernous ICA aneurysm
- Orbital abscess
- Anterior communicating artery aneurysm
- Posterior cerebral artery aneurysm
- Cervical dural arteriovenous fistula
- Anterior communicating artery aneurysm with subarachnoid haemorrhage
- Ruptured cerebral aneurysm (gross pathology)
- Saccular cerebral aneurysm
- Giant intracranial aneurysm
- Ruptured ACA aneurysm
- Neurogenic pulmonary edema due to brain death
- Ruptured pericallosal aneurysm
- Convexal subarachnoid haemorrhage secondary to superior sagittal sinus thrombosis
- Intracerebral haemorrhage secondary to aneurysm
- Intracerebral haemorrhage secondary to aneurysm
- Intracerebral haemorrhage secondary to aneurysm
- Internal carotid artery aneurysm
- Ruptured ACom aneurysm
Multiple choice questions: