Surgery on the endolymphatic sac.
D007758:Ear, Inner / Q000601:surgery*; D004712:Endolymphatic Sac / Q000503:physiopathology / Q000601:surgery*; D006706:Homeostasis; D006801:Humans; D008575:Meniere Disease / Q000503:physiopathology / Q000601:surgery*; D008722:Methods; D014717:Vertigo / Q000628:therapy