title: Late pneumolabyrinth may be induced by old penetrating injury: possibility of undiagnosed posttraumatic perilymphatic fistula.
abstract: Traumatic pneumolabyrinth is a relatively rare entity. We report the case of a unilaterally deaf woman with pneumolabyrinth who had suffered penetrating injury 15 years ago. This past history indicated that the case was late pneumolabyrinth occurring from undiagnosed old posttraumatic perilymphatic fistula. In Japan, most cases of traumatic pneumolabyrinth are caused by penetrating injury with an ear pick. Dizziness often improves within several months. Immediate surgical intervention is recommended for hearing loss, but the hearing outcome is not satisfactory. An appropriate strategy should be selected based on the interval to surgery, bone conduction hearing level at disease onset, stapes lesions, and location of air.
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotakecho, Miyazaki 889-1692, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Nakashima
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotakecho, Miyazaki 889-1692, Japan.
authors.forename: Keiji
authors.initials: K
authors.lastname: Matsuda
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, Kagoshima City Hospital, No. 20-17, Kajiyacho, Kagoshima 892-8580, Japan.
authors.forename: Takumi
authors.initials: T
authors.lastname: Okuda
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotakecho, Miyazaki 889-1692, Japan.
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Tono
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, Kagoshima City Hospital, No. 20-17, Kajiyacho, Kagoshima 892-8580, Japan.
authors.forename: Minoru
authors.initials: M
authors.lastname: Takaki
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, Kagoshima City Hospital, No. 20-17, Kajiyacho, Kagoshima 892-8580, Japan.
authors.forename: Tamon
authors.initials: T
authors.lastname: Hayashi
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, Kagoshima City Hospital, No. 20-17, Kajiyacho, Kagoshima 892-8580, Japan.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Hanamure