title: [Cerebrospinal fluid leak due to inner ear malformations].
abstract: A case of inner ear anomalies associated with recurrent meningitis found in a 66-year-old female is reported. The patient had had 2 episodes of meningitis in the previous one year period. Multidetector-row CT of the temporal bone and three-demensional fast imaging employing steady-state acquisition MRI revealed dysplasia of the bony labyrinth and enlarged fundus of the internal auditory canal (IAC). During surgical treatment, we confirmed the cerebrospinal fluid (CSF) leakage through a bony defect in the stapedial footplate. The inner ear was obliterated and contained small pieces of temporal fascia. A meningitis or CSF leakage due to inner ear malformation is extreamly rear condition for neurosurgeon. Though we always have to take it into condideration as a cause of CSF leakage.
authors.affiliation: Department of Neurosurgery, Sapporo Medical University, S1W16, Chuo-ku, Sapporo 060-8543, Japan. tmikami@sapmed.ac.jp
authors.forename: Takeshi
authors.initials: T
authors.lastname: Mikami
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Minamida
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Himi
authors.forename: Kiyohiro
authors.initials: K
authors.lastname: Houkin
mesh_terms: D000368:Aged; D002558:Cerebrospinal Fluid Otorrhea / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D007758:Ear, Inner / Q000002:abnormalities*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008581:Meningitis / Q000209:etiology; D012008:Recurrence