Direct Thrombosis of a Pseudoaneurysm after Obliteration of a Carotid-Cavernous Fistula with Cellulose Acetate Polymer

Abstract
A 55-year-old man who suffered a head injury resulting in a left traumatic carotid-cavernous fistula was successfully treated with an intravascular detachable balloon. A pseudoaneurysm formed adjacent to the balloon. Seven months after the initial procedure, treatment with cellulose acetate polymer, a new liquid thrombotic material, occluded the pseudoaneurysm and preserved the internal carotid artery.