title: Osteoid osteoma of the petrous bone.
abstract: We present a case of osteoid osteoma of the petrous bone presenting with progressive sensorineural hearing loss. CT showed a dense homogeneous mass at the promontory surrounded by a thin bony border. On MRI this lesion gave intermediate signal intensity on T1- and T2-weighted spin-echo images and enhanced intensely with gadolinium. Surgical removal and pathological study proved the diagnosis.
authors.affiliation: Service de Neuroradiologie, Hôpital Bicêtre, Le Kremlin Bicêtre, France.
authors.forename: C
authors.initials: C
authors.lastname: Iffenecker
authors.forename: P
authors.initials: P
authors.lastname: Rocher
authors.forename: M H
authors.initials: MH
authors.lastname: Rabia
authors.forename: Z
authors.initials: Z
authors.lastname: Dhina
authors.forename: S
authors.initials: S
authors.lastname: Bobin
authors.forename: J
authors.initials: J
authors.lastname: Quillard
authors.forename: D
authors.initials: D
authors.lastname: Doyon
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006319:Hearing Loss, Sensorineural / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010017:Osteoma, Osteoid / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology; D010579:Petrous Bone; D012888:Skull Neoplasms / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology; D014057:Tomography, X-Ray Computed