title: Typical Meningioma with Atypical MR Imaging Features Masquerading Malignancy. A Case Report.
abstract: Meningiomas are the most common extraaxial tumors of intracranial neoplasms. They are usually benign with characteristic pathologic and imaging features. However, a histologically typical meningioma can have unusual or misleading imaging features that may not be suggestive of meningioma. Unusual imaging features such as large meningeal cysts, ring enhancement, and various metaplastic changes can be particularly misleading. Here we present a fibrous meningioma with atypical magnetic resonance (MR) imaging features in a 76-year-old woman.
authors.affiliation: Department of Radiology, Tri-Service General Hospital, National Defense Medical Center, Neihu; Taipei, Taiwan, Republic of China - sandy0928@seed.net.tw.
authors.forename: Hung-Wen
authors.initials: HW
authors.lastname: Kao
authors.forename: Cheng-Yu
authors.initials: CY
authors.lastname: Chen
authors.forename: Chun-Jen
authors.initials: CJ
authors.lastname: Hsueh
authors.forename: Chung-Ping
authors.initials: CP
authors.lastname: Lo
authors.forename: Chun-Jung
authors.initials: CJ
authors.lastname: Juan
authors.forename: Wei-Chou
authors.initials: WC
authors.lastname: Chang
authors.forename: Guo-Shu
authors.initials: GS
authors.lastname: Huang