Medical expert of the article

Neurosurgeon, neuro-oncologist

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Arterial aneurysms of cerebral vessels

Alexey Kryvenko, medical expert
Last reviewed: 07.07.2025

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Symptoms
Forms

Treatment
Who to contact?

An aneurysm is a local widening of the lumen of an artery as a result of changes or damage to its walls. Most often, brain aneurysms are a disease of the arterial triads of the polygon of Willis.

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Symptoms of cerebral arterial aneurysms

Prehemorrhagic period (asymptomatic or low-symptom course, less often tumor-like course with large aneurysms).
Hemorrhagic period (clinical presentation of hemorrhagic stroke, mainly of the subarachnoid hemorrhage type).

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Forms

Bifurcation-hemodynamic aneurysms (so-called congenital):
- Bifurcation-hemodynamic aneurysms in systemic arterial hypertension;
- Bifurcation-hemodynamic aneurysms in regional hemodynamic disorders (fibromuscular dysplasia, moyamoya disease, developmental anomalies of the cerebral arterial circle);
- Bifurcation-hemodynamic aneurysms in some hereditary diseases (Marfan, Ehlers-Danlos, Gronblad-Strandberg, Friedreich, Bloom syndromes, Pompe disease).
Degenerative necrotic aneurysms (radiation, atherosclerotic).
Traumatic (with traumatic brain injury).
Inflammatory (as a result of vasculitis, embolic bacterial or mycotic).
Oncogenic.
Dysembriogenetic.
Iatrogenic.

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Who to contact?

Neurosurgeon

Treatment of cerebral arterial aneurysms

Open (transcranial) interventions.
Endovascular interventions using:
- balloon catheters;
- stents;
- spirals (coils).