A 38-year-old man was admitted for possible embolization of a left carotid cavernous sinus fistula. Two months previously, the patient had been admitted to the hospital after a motorcycle accident. Twenty-four hours later, he was noted to have left proptosis, chemosis, and a third-nerve palsy. An angiogram was performed and showed a carotid cavernous sinus fistula (Fig. 1 A). The patient was re...
