Carotid Cavernous Sinus Fistulas Without Superior Ophthalmic Vein Enlargement

摘要

Purpose: Diagnosis of carotid cavernous fistula (CCF) relies on clinical findings, such as proptosis, chemosis, and pulsatile tinnitus, plus imaging features including enlargement of the superior ophthalmic vein (SOV). This study reviewed patients with CCF, with a focus on those who were clinically symptomatic but had a normal-appearing SOV on routine scans.