Description of clinical features, MRI and endovascular interventional characteristics of patients with Galen venous malformation. Materials and methods: Description of a cross-sectional study case-seri of Galen vein malformations treated by endovascular intervention at the National Children's Hospital from 2019-2020. Results:4/7cases were diagnosed prenatally in the 3rd trimester of pregnancy, 2/7 cases with heart failure were found in newborns, in children > 1 month old, 3/5 had no symptoms, 2/5 had big head. 5/7 patients had the artery supplying the malformation from the anterior choroidal artery or the posterior choroidal arteryor both. 2/7 of the malformations had branches from the posterior cerebral artery and anterior cerebral artery supplying to the malformation. The mural type is found in 3/7 cases, 4/7 is the choroidal type. The rate of complete or almost complete obliteration of the malformation is 3/7 case, all of which are found in the mural type. Recorded 2/7 cases with complications drifting embolized material to the venous sinuses for drainage and 1/7 cases with bilateral femoral artery occlusion. Conclusions: Endovascular intervention is effective in the treatment vein of Galen malformation.