title: [Superior semicircular canal dehiscence syndrome treated by calcium phosphate cement canal plugging: a case report].
abstract: Superior semicircular canal dehiscence (SCD) syndrome exhibits pressure- and/or sound-induced oscillopsia and vertigo due to an absence of bone overlaying the superior semicircular canal. A 33-year-old man with right-ear SCD reported dizziness in a noisy hall three years earlier followed by dizziness during flatulence, straining or coughing, and right-ear autophony. Audiography showed a right-ear low-frequency air-bone gap, with positive Tullio phenomenon and a Valsalva maneuver against closed glottis causing torsional-vertical nystagmus. Temporal-bone computed tomography (CT) led to a diagnosis of right-ear SCD syndrome. Surgical dehiscence plugging with calcium phosphate cement via the middle fossa resolved vestibular and cochlear symptoms in the more than two years since.
authors.affiliation: Department of Otolaryngology, Gifu University Graduate School of Medicine, Gifu.
authors.forename: Hisamitsu
authors.initials: H
authors.lastname: Hayashi
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Aoki
authors.forename: Nansei
authors.initials: N
authors.lastname: Yamada
authors.forename: Bunya
authors.initials: B
authors.lastname: Kuze
authors.forename: Keisuke
authors.initials: K
authors.lastname: Mizuta
authors.forename: Yatsuji
authors.initials: Y
authors.lastname: Ito
mesh_terms: D000328:Adult; D002130:Calcium Phosphates / Q000627:therapeutic use*; D006801:Humans; D007759:Labyrinth Diseases / Q000175:diagnosis / Q000601:surgery*; D008297:Male; D012665:Semicircular Canals
chemical_list: D002130:Calcium Phosphates; C020243:calcium phosphate