title: Apparent paradoxical vault changes with middle cranial fossa arachnoid cysts--implication for aetiology.
abstract: Three cases of middle cranial fossa arachnoid cyst with paradoxical bone changes in the adjacent vault are described, namely, a small middle cranial fossa and pneumosinus dilatans. This association is unusual and unique. The existing literature is reviewed and the probable aetiological factors discussed.
authors.affiliation: Department of Imaging, Charing Cross Hospital, London, UK.
authors.forename: S
authors.initials: S
authors.lastname: Redla
authors.forename: Y
authors.initials: Y
authors.lastname: Husami
authors.forename: I R
authors.initials: IR
authors.lastname: Colquhoun
mesh_terms: D000328:Adult; D016080:Arachnoid Cysts / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology*; D001927:Brain Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010254:Paranasal Sinus Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D012886:Skull / Q000002:abnormalities* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed