title: Direct endoscopic intratumoral injection of Onyx for the preoperative embolization of a recurrent juvenile nasal angiofibroma.
abstract: Percutaneous injection of embolization material within head and neck tumors is being described as an alternative or adjunct to transarterial embolization. Access in these reports is by computed tomography (CT) guidance, which is cumbersome given the need to transport the patient from the CT scanner to angiography suite. We describe a case of direct percutaneous onyx embolization of juvenile nasal angiofibroma following endoscopic access in the angiography suite including self-sustained onyx combustion during surgical electrocautery.
authors.affiliation: Department of Radiology, New York Medical College, Westchester Medical Center, Valhalla, NY, USA.
authors.forename: A
authors.initials: A
authors.lastname: Hira
authors.forename: K
authors.initials: K
authors.lastname: Chao
mesh_terms: D000293:Adolescent; D018322:Angiofibroma / Q000000981:diagnostic imaging / Q000601:surgery / Q000628:therapy*; D003287:Contrast Media; D004121:Dimethyl Sulfoxide / Q000008:administration & dosage*; D004621:Embolization, Therapeutic / Q000379:methods*; D004724:Endoscopy / Q000379:methods*; D006801:Humans; D015552:Injections, Intralesional; D008297:Male; D009303:Nasopharyngeal Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery / Q000628:therapy*; D011145:Polyvinyls / Q000008:administration & dosage*; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; C450660:Onyx copolymer; D011145:Polyvinyls; D004121:Dimethyl Sulfoxide