title: Brain herniation into the middle ear following temporal bone fracture.
abstract: Otorrhea of leaked cerebrospinal fluid and meningitis in a 33-year-old male originated from an encephalic herniation into the middle ear following traumatic temporal bone fracture. CT demonstrated a mixed-type fracture consisting of a longitudinal fracture and a posterior oblique fracture of the left temporal bone. The left tegmen tympani was broken into a bellows-like shape and a bone splinter from it had stuck in the epitympanum at the level of the incus body. Surgery via a middle cranial fossa approach confirmed penetration of the brain tissue between the incus and lateral semicircular canal. The diagnosis and management of this condition are discussed in the context of a literature review.
authors.affiliation: Department of Otolaryngology, Suita Municipal Hospital, Suita, Japan. nishiike@concerto.plala.or.jp
authors.forename: Suetaka
authors.initials: S
authors.lastname: Nishiike
authors.forename: Yasuyoshi
authors.initials: Y
authors.lastname: Miyao
authors.forename: Seiichi
authors.initials: S
authors.lastname: Gouda
authors.forename: Nobumitsu
authors.initials: N
authors.lastname: Shimada
authors.forename: Miki
authors.initials: M
authors.lastname: Nagai
authors.forename: Aya
authors.initials: A
authors.lastname: Nakagawa
authors.forename: Masaki
authors.initials: M
authors.lastname: Konishi
authors.forename: Yoshiharu
authors.initials: Y
authors.lastname: Sakata
mesh_terms: D000328:Adult; D002558:Cerebrospinal Fluid Otorrhea / Q000175:diagnosis / Q000209:etiology / Q000601:surgery; D004432:Ear, Middle; D004677:Encephalocele / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D005334:Fever; D006261:Headache; D006801:Humans; D008297:Male; D008586:Meningitis, Pneumococcal / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D012887:Skull Fractures / Q000150:complications* / Q000601:surgery; D013701:Temporal Bone / Q000293:injuries*; D016896:Treatment Outcome