title: [Report of a case of intraosseous meningioma: a review of the literature and diagnostic value using MRI study].
abstract: A 40-year-old woman with intraosseous meningioma is reported. She was admitted because of a slowly growing, bony hard, fixed mass in the temporal area that was covered by the normal scalp. The neurological examination on admission was negative. Plain skull radiogram demonstrated an area of hyperostotic change in the temporal region. Bone-targeted CT demonstrated irregularity in the structure of the skull bone. Selective external carotid angiogram showed a homogeneous tumor stain in the region of the skull thickening. Macroscopically complete tumor resection (Simpson's grade 1) was carried out. Her postoperative course was uneventful. The skull tumor had the typical feature of meningotheliomatous meningioma. MRI showed a mass lesion of the temporal bone on T1- and T2-weighted images, and a well-enhanced mass lesion of the outer dura and outer table of the skull bone on Gd-DTPA enhanced T1 images. The findings of the preoperative MRI study using Gd-DTPA were identical with the tumor area on histological study. Therefore, MRI with Gd-DTPA enhancement was considered a useful diagnostic modality.
authors.affiliation: Department of Surgical Neurology, Jichi Medical School.
authors.forename: N
authors.initials: N
authors.lastname: Kobayashi
authors.forename: T
authors.initials: T
authors.lastname: Mashiko
authors.forename: T
authors.initials: T
authors.lastname: Nonaka
authors.forename: S
authors.initials: S
authors.lastname: Shinoda
authors.forename: T
authors.initials: T
authors.lastname: Masuzawa
mesh_terms: D000328:Adult; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging; D008579:Meningioma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D009942:Organometallic Compounds; D004369:Pentetic Acid / Q000031:analogs & derivatives; D012888:Skull Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery
chemical_list: D009942:Organometallic Compounds; D004369:Pentetic Acid; D019786:Gadolinium DTPA