title: Letter: External carotid-cavernous fistula.
mesh_terms: D001164:Arteriovenous Fistula / Q000151:congenital*; D002340:Carotid Artery Diseases / Q000151:congenital*; D002342:Carotid Artery, External / Q000002:abnormalities; D002426:Cavernous Sinus / Q000002:abnormalities*; D006801:Humans; D002532:Intracranial Aneurysm / Q000151:congenital