title: [Superior semicircular canal dehiscence as a cause of hearing loss].
abstract: Superior semicircular canal dehiscence can be the cause of hearing loss and vertigo. Typical findings are conductive hearing loss and hyperacusis to bone-conducted sounds. Also acute pressure- and sound-evoked vestibular symptoms may occur. We describe a middle-aged patient with a conductive hearing loss. A few basic examinations led to suspicion of superior canal dehiscence. Computerized tomographic (CT) scan revealed a pathologic third window in the superior semicircular canal.
authors.affiliation: Keski-Suomen keskussairaala, korva-, nenä- ja kurkkutautien klinikka.
authors.forename: Juha
authors.initials: J
authors.lastname: Anttinen
authors.forename: Lotta
authors.initials: L
authors.lastname: Saaranen
authors.forename: Elina
authors.initials: E
authors.lastname: Nikanne
mesh_terms: D003937:Diagnosis, Differential; D006314:Hearing Loss, Conductive / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D012665:Semicircular Canals / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed; D014717:Vertigo / Q000209:etiology