Vein of Galen aneurismal malformations - clinical characteristics, treatment and presentation: Three cases report

Figure 1 Imaging examinations of patient 1. A: Chest x-ray with cardiomegaly. The arrows indicate the outlines of cardiac silhouette; B-E: The MRI showing a 22 mm x 14 mm choroidal VGAM (red arrow pointing on the malformation). The scale indicates 2 cm; F: Angiography showing the feeders originating from the posterior choroidal and pericallosal arteries (red arrows) with the characteristic persistent limbic ring (black arrows). The scale indicates 1 cm; G-I: The partially occluded VGAM after an endovascular transarterial embolization with coils, which are visible in the malformation; J-L: A control MRI 15 mo after treatment. Almost complete thrombosis of the VGAM (J and K) with a good venous drainage (arrows) toward the sagittal, transverse and sigmoid sinuses may be seen (L).