Big Right Terminal ICA Cerebral Aneurysm

A patient had a giant aneurysm in the right internal carotid artery (ICA), measuring 11.85 mm x 9.42 mm x 7.38 mm. Characterised by its saccular shape and wide neck, the most concerning aspect was its asymptomatic nature, being accidentally discovered only during a routine body check using 3D Magnetic Resonance Angiography (MRA) of the brain.

The natural history of this cerebral aneurysm indicated that it could rupture at any time, leading to a severe hemorrhagic stroke, specifically a subarachnoid hemorrhage. The risk of rupture was about 1% per year, increasing cumulatively with age, meaning the younger the age, the higher the cumulative lifetime risk.

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Faced with this asymptomatic yet potentially high-risk situation, our neurosurgical team conducted a careful assessment and cautious discussion. Ultimately, we decided to perform a precise surgery to address this aneurysm, aiming to prevent potential catastrophic consequences.

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The surgery was a challenge, requiring high levels of expertise and skill. The team utilized the latest technology and equipment to ensure the precision and safety of the operation. Post-surgery, the patient had a smooth recovery process, with the aneurysm being successfully treated, significantly reducing the risks of rupture and stroke.

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