title: Large vestibular aqueduct syndrome with high CT density and high MR signal intensity.
abstract: We report a case of large vestibular aqueduct syndrome with a markedly dilated endolymphatic sac bilaterally. The density and signal intensity of the extraosseous portion of the sac were higher than those of cerebrospinal fluid on CT and MR studies. The findings may represent protein-rich and hyperosmolar fluid within the endolymphatic sac.
authors.affiliation: Department of Radiology, School of Medicine, Niigata University, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Okamoto
authors.forename: J
authors.initials: J
authors.lastname: Ito
authors.forename: T
authors.initials: T
authors.lastname: Furusawa
authors.forename: K
authors.initials: K
authors.lastname: Sakai
authors.forename: S
authors.initials: S
authors.lastname: Tokiguchi
mesh_terms: D000328:Adult; D004108:Dilatation, Pathologic / Q000151:congenital; D004712:Endolymphatic Sac / Q000002:abnormalities* / Q000473:pathology; D005260:Female; D003639:Hearing Loss, Sudden / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D013577:Syndrome; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014723:Vestibular Aqueduct / Q000002:abnormalities* / Q000473:pathology; D015837:Vestibular Diseases / Q000151:congenital* / Q000175:diagnosis