title: Epidural mass related to calvarial aneurysmal bone cyst: computed tomographic and magnetic resonance demonstration.
abstract: The computed tomographic and magnetic resonance appearance of a calvarial aneurysmal bone cyst is described. Both forms of imaging demonstrate an epidural mass in the right occiput. The fluid-fluid levels in the mass on the T2-weighted images are characteristic of, though not specific for, aneurysmal bone cyst.
authors.affiliation: Department of Radiology, University of Massachusetts Medical Center, Worcester 01655, USA.
authors.forename: K Y
authors.initials: KY
authors.lastname: Lau
authors.forename: R L
authors.initials: RL
authors.lastname: Ragland
authors.forename: J P
authors.initials: JP
authors.lastname: Weaver
authors.forename: T W
authors.initials: TW
authors.lastname: Smith
authors.forename: J R
authors.initials: JR
authors.lastname: Knorr
authors.forename: M
authors.initials: M
authors.lastname: Weyreuther
mesh_terms: D000293:Adolescent; D017824:Bone Cysts, Aneurysmal / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009777:Occipital Bone / Q000000981:diagnostic imaging / Q000473:pathology; D010014:Osteolysis / Q000175:diagnosis / Q000000981:diagnostic imaging; D012886:Skull / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed