Abstract
Two cases of congenital external auditory canal stenosis that caused infection of the temporal bone were reported. A 7-year-old boy complained of a discharge from the fistula in the right retroauricular region. CT scan showed the right external ear canal and middle ear occupied with soft tissue mass. The fistula was connected to the cholesteatoma in the bony portion of the external ear canal. After remval of the cholesteatoma, the cartilaginous part was enlarged. The second case was a 37-year-male complaining of a painful swelling in his right retroauricular region. CT and MRI examinations showed that the inferior part of the external ear canal was widely destructed and the soft tissue mass extended into the deep cervical region. Surgical exploration revealed that the right external ear canal and the parapharyngeal space were occupied with cholesteatoma. After remval of cholesteatoma, the bony external ear canal wall was covered with a free skin graft. Postoperatively, both cases showed hearing improvement.
