Automastoidectomy denotes extensive bone destruction of the mastoid mimicking the appearance of surgery (mastoidectomy), most often caused by cholesteatoma.
Spontaneous evacuation of cholesteatoma can be seen with automastoidectomy 1. In these circumstances, it is often referred to as mural cholesteatoma or unusual cholesteatoma shell, as there is no residual soft tissue mass 2.
Automastoidectomy has also been reported with keratosis obturans 3.
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