title: Dispersion of coils after parent-artery occlusion of radiation-induced internal carotid artery pseudoaneurysm.
abstract: We report a rare complication following parent-artery occlusion in a patient with radiation-induced carotid pseudoaneurysms. Both the right internal carotid artery pseudoaneurysm and the recurrent external carotid artery pseudoaneurysm were treated by parent-artery occlusion with coils. Although rebleeding was not observed after the second embolization, angiography and endoscopy at the 12-month follow-up showed dispersion and migration of coils into the pharynx and the external auditory canal due to progressive radiation necrosis.
authors.affiliation: Department of Radiology, Oita Medical University, Oita, Japan.
authors.forename: Hiro
authors.initials: H
authors.lastname: Kiyosue
authors.forename: Mika
authors.initials: M
authors.lastname: Okahara
authors.forename: Shuichi
authors.initials: S
authors.lastname: Tanoue
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Sagara
authors.forename: Shunro
authors.initials: S
authors.lastname: Matsumoto
authors.forename: Hiromu
authors.initials: H
authors.lastname: Mori
authors.forename: Miori
authors.initials: M
authors.lastname: Arita
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Watanabe
authors.forename: Masashi
authors.initials: M
authors.lastname: Suzuki
mesh_terms: D020216:Carotid-Cavernous Sinus Fistula / Q000209:etiology* / Q000628:therapy*; D004621:Embolization, Therapeutic / Q000295:instrumentation*; D004868:Equipment Failure; D005548:Foreign-Body Migration / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011832:Radiation Injuries / Q000150:complications*