title: Spontaneous meningocele, a rare middle ear mass.
abstract: This report describes the CT and MR findings in one patient with a spontaneous middle ear meningocele and a second patient with a middle ear meningoencephalocele possibly related to a large intracranial mass. High-resolution CT defined anatomic relation and bone destruction, and MR aided in tissue characterization.
authors.affiliation: Department of Radiology, Toronto Hospital, Ontario, Canada.
authors.forename: B G
authors.initials: BG
authors.lastname: Gray
authors.forename: R A
authors.initials: RA
authors.lastname: Willinsky
authors.forename: J A
authors.initials: JA
authors.lastname: Rutka
authors.forename: C H
authors.initials: CH
authors.lastname: Tator
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004427:Ear Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D004432:Ear, Middle / Q000000981:diagnostic imaging / Q000473:pathology*; D004677:Encephalocele / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008588:Meningocele / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013701:Temporal Bone / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed