Dispersion of coils after parent-artery occlusion of radiation-induced internal carotid artery pseudoaneurysm.
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.
Kiyosue
Hiro
H
Department of Radiology, Oita Medical University, Oita, Japan.
Okahara
Mika
M
Tanoue
Shuichi
S
Sagara
Yoshiko
Y
Matsumoto
Shunro
S
Mori
Hiromu
H
Arita
Miori
M
Watanabe
Tetsuo
T
Suzuki
Masashi
M
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*