| In every case the primary surgical aim was exenteration of retraction pocket disease with or without cholesteatoma. |
| Further exploration of middle ear and mastoid cavity revealed cholesteatoma eroding all ossicles and involving mastoid bone. |
| Common pathologies that produce CHL include otitis, TM rupture, cholesteatoma and trauma. |
| This may lead to inadequate removal of cholesteatoma with residual disease or inadequate ventilation of the epitympanum leading to recurrent cholesteatoma. |
| In both cases, radical mastoidectomies with cholesteatoma excision were performed. |
| Following exposure of the EAC via a retroauricular approach, the inferior wall of the EAC was found to be destroyed by the cholesteatoma. |
