Techniques in Management of Cholesteatoma: Radical and Canal Wall down Mastoidectomy.

Canal wall down mastoidectomy is performed when demanded by the extent of disease: presence of a large labyrinthine fistula, extensive erosion of posterior auditory canal wall, prior failed intact canal wall surgery, a contracted, sclerotic mastoid with extensive disease, or need for exteriorization due to inadequate exposure or inability to remove disease safely with a canal wall up approach.