[Endovascular treatment of vein of galen malformation with coils and onyx--case report].

Vein of galen malformation (VOGM) is a very rare disease which affects blood vessels of the brain. In general population the incidence is estimated at 1%. Treatment of choice is transluminal embolization. We present the case of five-month-old child with low degree heart failure, hydrocephalus and significantly delayed psychomotor development. MR examination reveals a vein of Galen malformations, wall type (type I according to Yasargil) 6 cm in diameter, with venous drainage to the sinus rectus. The enlarged vein filled with thrombus. It causes brain stem compression. Angiography shows one feeder leading to the VOGM, from right posterior brain artery. Lesion was treated with two embolic materials: 5 coils and 2 ml of ONYX. Angiography confirmed total exclusion of the fistula and the circulation in the vein of Galen. One of the most important elements of treatment is to perform a proper diagnosis and evaluation of lesions morphology. With proper technique, high skills and proper equipment, intravascular embolization of vein of Galen malformation is an effective treatment.