recently, therapeutic embolization has been advocated as the treatment of choice for spinal AVM(arteriovenous malformations). The authors review our experience with two cases of spinal AVM treated by embolization using coaxial Tracker -18 microcatheter with Ivalon. The patients included a 10-year-old male with glomus type and a 14-year-old female with juvenile type spinal AVM revealed recanalization 5 months later. Embolization provides curative or temporary treatment for spinal AVM. After embolic occlusion, delayed reassessment with arteriography is indicated, particularly if symptoms persist or recur.