Exostosis of External Ear Canal


Exostosis of External Ear Canal, Ear Canal Exostoses, Auditory Canal Exostosis, Surfer's Ear

  • Pathophysiology
  1. Benign bony growth of ear canal
  2. Composed of dense compact bone
  • Epidemiology
  1. Associated with cold water swimming
  2. Most common tumor of auditory canal
  • Symptoms
  1. Conductive Hearing Loss (typically painless)
  • Signs
  1. Bilateral, multiple bony growths within the external auditory canal
  2. Adjacent to Tympanic Membrane
  • Differential Diagnosis
  • Management
  1. Excision if Hearing Loss or Otalgia
  2. Excision Indications
    1. Obstructive symptoms (e.g. Conductive Hearing Loss)
    2. Secondary infection