Congenital cholesteatoma (CC ... when sound waves cannot efficiently travel through the outer ear canal to the eardrum and the tiny bones of the middle ear. Tympanotomy: A surgical procedure ...

Tympanoplasty: A surgical procedure to repair a perforated tympanic membrane (eardrum) or to reconstruct the middle ear. Cholesteatoma: An abnormal skin growth in the middle ear that can lead to ...