Chapter 8 - Diseases of the ear and mastoid process (H60-H95)»Diseases of middle ear and mastoid (H65-H75)»Cholesteatoma of middle ear (H71)
H71
Cholesteatoma of middle ear
Sub-codes (5)
Related indications (MeSH) (1)
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.