Vein of Galen Aneurysmal Malformation

There is presence of falcine sinus leading to the characteristic accessory torcula appearance in the cerebral venous imaging studies. This differentiates it from the vein of Galen aneurysmal dilatation wherein there is presence of a normal draining straight sinus. There may be associated other venous anomalies like the stenosed, fenestrated, duplicated or absent straight sinus owing to the absence of cavernous sinus drainage prior to six months of age [3].