title: Idiopathic endolymphatic hydrops and the vestibular aqueduct.
abstract: The vestibular aqueduct (VA) and endolymphatic sac were examined topographically in 29 human ears with idiopathic endolymphatic hydrops. When compared with 34 control ears, there was found to be a slight but statistically significant reduction in the width (P less than 0.005) and length (P less than 0.05) of the vestibular aqueduct. A small hypoplastic endolymphatic sac was found in three of the ears with hydrops but was also present in one control ear. It would appear that a marked reduction in sac size is not a consistent feature in ears with endolymphatic hydrops.
mesh_terms: D004712:Endolymphatic Sac / Q000473:pathology; D006801:Humans; D008575:Meniere Disease / Q000209:etiology / Q000473:pathology*; D014723:Vestibular Aqueduct / Q000473:pathology*; D014722:Vestibule, Labyrinth / Q000473:pathology*