title: The large vestibular aqueduct syndrome.
abstract: The hypocycloidal polytomographic temporal bone studies performed on 2683 patients were reviewed, and the radiographic appearance of the vestibular aqueduct was evaluated. Within this group of 5366 ears, forty-seven ears (1%) in twenty-six patients demonstrated a large vestibular aqueduct (diameter greater than 1.5 mm). A review of the relevant embryology, anatomy, and physiology is reported. A discussion of hypocycloidal polytomography and computed tomography of the temporal bone as well as a discussion of the Mondini dysplasia is also presented. The twenty-six patients underwent a battery of audiometric and vestibular function tests. These data were compiled and correlations made, allowing for a more complete characterization of the large vestibular aqueduct syndrome.
mesh_terms: D000293:Adolescent; D000328:Adult; D001299:Audiometry; D001300:Audiometry, Evoked Response; D002648:Child; D002675:Child, Preschool; D004584:Electronystagmography; D005072:Evoked Potentials, Auditory; D005260:Female; D006801:Humans; D007759:Labyrinth Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging*; D008297:Male; D013577:Syndrome; D014057:Tomography, X-Ray Computed; D014723:Vestibular Aqueduct / Q000002:abnormalities / Q000000981:diagnostic imaging*; D014724:Vestibular Function Tests; D014722:Vestibule, Labyrinth / Q000000981:diagnostic imaging*