title: Extraparenchymal Lesions in Adults.
abstract: This article reviews the most frequent extra-axial tumors of the central nervous system, from the most common meningioma to some uncommon conditions, like Rosai-Dorfman disease, focusing on imaging techniques, pearls, and pitfalls as well as a more practical approach.
authors.affiliation: Department of Radiology, Marqués de Valdecilla University Hospital/IDIVAL, Avda. Valdecilla n° 25, Santander 39008, Cantabria, Spain. Electronic address: drake.marta@gmail.com.
authors.forename: Marta
authors.initials: M
authors.lastname: Drake-Pérez
authors.affiliation: MedPix, National Library of Medicine, 8600 Rockville Pike, Bethesda, MD 20894, USA; Department of Radiology, George Washington University, 2121 Eye Street Northwest, Washington, DC 20052, USA.
authors.forename: James G
authors.initials: JG
authors.lastname: Smirniotopoulos
mesh_terms: D000328:Adult; D020863:Central Nervous System Cysts / Q000000981:diagnostic imaging*; D003952:Diagnostic Imaging / Q000379:methods; D006393:Hemangiopericytoma / Q000000981:diagnostic imaging*; D006801:Humans; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging*; D008579:Meningioma / Q000000981:diagnostic imaging*; D059906:Neuroimaging / Q000379:methods*; D010911:Pituitary Neoplasms / Q000000981:diagnostic imaging*
keywords: Cyst; Extra-axial; Hemangiopericytoma; Imaging; Meningioma; Neoplasm; Pituitary; Tumors