title: Brain herniation into the mastoid in a normal hearing ear.
abstract: A cluster of right temporal lobe abscesses in a 40-year-old male originated from an endaural brain hernia affecting the mastoid only, without direct contact with the ossicular chain. In infancy, antrotomy had been performed. Otologic signs were sparse, hearing was normal. Computed tomography of the temporal bone showed homogenous clouding of the retrotympanal spaces and a defect of the tegmen antri. Treatment consisted of transmastoid débridement, reduction and duraplasty with fascia lata.
authors.affiliation: Department of Otorhinolaryngology 1, University of Vienna, Austria.
authors.forename: H
authors.initials: H
authors.lastname: Swoboda
authors.forename: T
authors.initials: T
authors.lastname: Czech
authors.forename: W
authors.initials: W
authors.lastname: Schima
mesh_terms: D000328:Adult; D001847:Bone Diseases / Q000150:complications; D001922:Brain Abscess / Q000209:etiology*; D004677:Encephalocele / Q000150:complications*; D006801:Humans; D008297:Male; D008416:Mastoid / Q000473:pathology*; D013203:Staphylococcal Infections; D013702:Temporal Lobe / Q000473:pathology