RT Journal Article SR Electronic T1 Complete devascularization of a juvenile angiofibroma by direct percutaneous embolization with only ethylene vinyl alcohol copolymer (Onyx) through a single needle placement JF Journal of NeuroInterventional Surgery JO J NeuroIntervent Surg FD BMJ Publishing Group Ltd. SP 191 OP 193 DO 10.1136/jnis.2010.003269 VO 3 IS 2 A1 Joseph J Gemmete A1 Neeraj Chaudhary A1 Aditya S Pandey A1 Jonathan B McHugh A1 Lawrence J Marentette YR 2011 UL http://jnis.bmj.com/content/3/2/191.abstract AB Embolization of a juvenile angiofibroma (JNA) is commonly performed prior to surgical resection. Traditionally, it has been performed from an intra-arterial approach with particulate material. A novel technique is described in which a JNA was completely devascularized prior to surgical removal by direct percutaneous embolization with only ethylene vinyl alcohol. A midfacial degloving and medial maxillectomy/maxillotomy was then performed and the tumor extirpated with blunt finger dissection and the assistance of an endoscope, with 200 ml of blood loss.