Squamous debris in the ear canal after a canal wall-down mastoidectomy with creation of a mastoid bowl
Squamous debris in the ear canal after a canal wall-down mastoidectomy with creation of a mastoid bowl
When it is necessary to sacrifice the ear canal during mastoidectomy (canal wall-down mastoidectomy), a common cavity (mastoid bowl) is created between the ear canal and the mastoid. Squamous debris must be periodically cleared from the mastoid bowl by an otolaryngologist throughout the patient's life.