Cholesteatoma is a non-neoplastic cystic lesion arising in the middle ear cleft with the propensity to spread and recur after surgery, but it is unusual to find cholesteatoma invading ...
Cysts can form in the ear canal. These are lumps formed by a buildup of oil or skin cells that form beneath the skin. A cholesteatoma is another type of abnormal growth that can form near the eardrum.
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