Traumatic Atresia of the External Auditory Canal; Report of Two Cases

Abstract

A 22-year-old male, complained of left hearing loss 4 months after head injury. CT scan revealed that the left external ear canal was totally obstructed with a soft tissue mass. Cholesteatoma existed medial to the connective tissue of the external ear canal during surgery. A 31-year-old female, complaining of pain and hearing loss in the left ear, had a history of traffic accident 13years ago. She had received left ear surgery twice. CT scan showed soft tissue in the external auditory canal, the middle ear, and the mastoid air cells. The inferior wall of the external ear canal was destructed. In both cases, cholesteatoma and scar in the ear canal were removed, and free skin graft was placed to cover the bony wall. Ear canal has been kept widely open and hearing was significantly improved.