title: Conservative tympanomastoidectomy.
mesh_terms: D000293:Adolescent; D000328:Adult; D002781:Cholesteatoma / Q000601:surgery*; D004427:Ear Diseases / Q000601:surgery*; D006801:Humans; D008417:Mastoiditis / Q000601:surgery*; D008722:Methods; D014433:Tympanoplasty