Cholesteatoma, Middle Ear
Synonyms
Aural Cholesteatoma
Aural Cholesteatomas
Cholesteatoma, Aural
Cholesteatomas, Aural
Cholesteatomas, Middle Ear
Middle Ear Cholesteatoma
Middle Ear Cholesteatomas
A mass of KERATIN-producing squamous EPITHELIUM that resembles an inverted (suck-in) bag of skin in the MIDDLE EAR. It arises from the eardrum (TYMPANIC MEMBRANE) and grows into the MIDDLE EAR causing erosion of EAR OSSICLES and MASTOID that contains the INNER EAR.