title: Complete devascularization of a juvenile angiofibroma by direct percutaneous embolization with only ethylene vinyl alcohol copolymer (Onyx) through a single needle placement.
abstract: 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.
authors: Department of Interventional Neuroradiology, University of Michigan Hospitals, Ann Arbor, MI, USA. gemmete@med.umich.edu
authors: Joseph J
authors: JJ
authors: Gemmete
authors: Neeraj
authors: N
authors: Chaudhary
authors: Aditya S
authors: AS
authors: Pandey
authors: Jonathan B
authors: JB
authors: McHugh
authors: Lawrence J
authors: LJ
authors: Marentette
mesh_terms: D000293:Adolescent; D018322:Angiofibroma / Q000098:blood supply / Q000601:surgery / Q000628:therapy*; D016063:Blood Loss, Surgical / Q000517:prevention & control*; D004621:Embolization, Therapeutic / Q000379:methods*; D006801:Humans; D008297:Male; D009303:Nasopharyngeal Neoplasms / Q000098:blood supply / Q000601:surgery / Q000628:therapy*; D011145:Polyvinyls / Q000627:therapeutic use*
chemical_list: D011145:Polyvinyls; C020320:ethylene-vinyl alcohol copolymer