title: Carotid-cavernous fistula with brainstem congestion mimicking tumor on MRI.
abstract: Article abstract-A 65-year-old woman presented with a left abduction deficit and "red eye," mild proptosis, chemosis, arterialization of the conjunctival vessels, intention tremor, and bilateral pyramidal signs. MRI showed significant left-sided brainstem involvement that mimicked a tumor. Right hemiplegia ensued 1 week later. Venous congestion of the brainstem with hemiplegia resulting from shunting of blood flow from both carotid arteries is an extremely rare complication of carotid-cavernous fistula.
authors.affiliation: Departments of Neurology, Toride Kyodo General Hospital, Toride City, Ibaraki, Japan. dw4s-sntn@asahi-net.or.jp
authors.forename: S
authors.initials: S
authors.lastname: Shintani
authors.forename: S
authors.initials: S
authors.lastname: Tsuruoka
authors.forename: T
authors.initials: T
authors.lastname: Shiigai
mesh_terms: D000368:Aged; D001927:Brain Diseases / Q000473:pathology*; D001933:Brain Stem / Q000473:pathology*; D020216:Carotid-Cavernous Sinus Fistula / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging