Vein of Galen aneurysm in an adult: case report
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Updated: Jul 19, 2026

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Robinson M Marques1, Carlos A F Lobão, Viviane S Sassaki
1Serviço de Neurocirurgia, Hospital Universitário Cajuru, Pontíficia Universidade Católica, Avenida São Jose 300, 90050-350 Curitiba PR, Brazil.
Abstract:
Vein of Galen aneurysm is a rare pathology, representing less than 1% of intracranial vascular malformations. We report on a 65-year-old man who experienced a generalized tonic-clonic seizure. Brain imaging showed a large calcified expanding mass in the pineal region, confirming the diagnosis of a vein of Galen aneurysm. Because of the spontaneous thrombosis of the malformation, there was no need for microsurgical or endovascular treatment and he has been regularly followed since that.
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