title: Malignant meningioma: computed tomography and magnetic resonance imaging characteristics.
abstract: Malignant meningioma is a relatively rare subtype of meningioma demonstrating an aggressive growth pattern, distinct histologic features, and a propensity for recurrence following surgical resection. There has been little consensus regarding imaging features of malignant meningioma, and typically the degree of tumor aggressiveness is determined by pathology. Here we describe a case of malignant meningioma determined to be benign at initial biopsy. Computed tomography (CT) and magnetic resonance (MR) imaging are reviewed with discussion of the aggressive features seen at presentation.
authors.affiliation: Department of Diagnostic Radiology, University of Connecticut Health Center, Farmington, USA.
authors.forename: Keith
authors.initials: K
authors.lastname: Cauley
authors.forename: Bipin
authors.initials: B
authors.lastname: Jagjivan
authors.forename: Ahmed
authors.initials: A
authors.lastname: Khan
mesh_terms: D005682:Gadolinium; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000175:diagnosis* / Q000473:pathology; D008579:Meningioma / Q000175:diagnosis*; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D012886:Skull / Q000473:pathology; D014057:Tomography, X-Ray Computed
chemical_list: D005682:Gadolinium