We present an adult male harbouring a vascular malformation, manifested by haemorrhage, which localization, arterial feeders and venous drainage, match the pattern of choroidal type vein of Galen aneurysmal malformations seen in babies, excepting the absence of anterior choroidal arteries participation. A few cases of vein of Galen aneurysmal malformations were already reported in adults, but haemorrhage was never well documented. This haemorrhage may have a pathogenesis similar to those of pial arteriovenous malformations.
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