Terminology & Guidelines

  • Staging and classification criteria for middle ear cholesteatoma proposed by the Japan Otological Society (ANL 2017)(1,384KB)
  • JOS system poster (ANL2017)(559KB)
  • EAONO/JOS consensus document (J Int Adv Otol 2017)(1,630KB)
  • EAONO/JOS system poster (J Int Adv Otol 2017)(340KB)
  • Diagnostic criteria for OMAAV (English version)(29KB)