An acquired or spontaneous abnormality in which there is communication between CAVERNOUS SINUS, a venous structure, and the CAROTID ARTERIES. It is often associated with HEAD TRAUMA, specifically basilar skull fractures (SKULL FRACTURE, BASILAR). Clinical signs often include VISION DISORDERS and INTRACRANIAL HYPERTENSION.

Synonyms: C-C Fistula, Carotid-Cavernous Sinus Fistulas, Carotid Artery Cavernous Sinus Fistula, Fistula, Carotid Artery Cavernous Sinus, Fistulas, Carotid-Cavernous Sinus, Carotid Cavernous Sinus Fistula, Fistula, Carotid Artery-Cavernous Sinus, Fistula, Carotid-Cavernous Sinus, Fistula, C-C, Traumatic Carotid-Cavernous Sinus Fistula, Fistulas, C-C, Traumatic Carotid Cavernous Sinus Fistula, C-C Fistulas, Carotid Artery-Cavernous Sinus Fistula, Carotid-Cavernous Sinus Fistula