title: CT and MRI features of cavernous haemangioma of internal auditory canal.
abstract: A left internal auditory canal (IAC) cavernous haemangioma is reported in a 45-year-old Saudi male. The lesion was associated with rapidly deteriorating hearing loss and facial nerve dysfunction. CT showed a calcified enhanced IAC lesion while T1 weighted MRI showed an isointense contrast enhancing lesion bulging into the porus acousticus. The imaging features of the three usual IAC lesions--meningioma, acoustic neuroma and cavernous haemangioma--were compared. Calcification/ossification appear more commonly in cavernous haemangioma than in the other two lesions while facial nerve dysfunction is a clinical hallmark of IAC cavernous haemangioma.
authors.affiliation: Department of Medical Imaging, King Fahad National Guard Hospital, Riyadh, Saudi Arabia.
authors.forename: M F
authors.initials: MF
authors.lastname: Omojola
authors.forename: N S
authors.initials: NS
authors.lastname: al Hawashim
authors.forename: M A
authors.initials: MA
authors.lastname: Zuwayed
authors.forename: A
authors.initials: A
authors.lastname: al Ferayan
mesh_terms: D004428:Ear Neoplasms / Q000175:diagnosis*; D005064:Eustachian Tube; D006392:Hemangioma, Cavernous / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed