MCQ MAHE 2000 ENT Answer 05
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Cholesteatoma is an abnormal accumulation of keratin-producing squamous epithelium in the middle ear, epitympanum, mastoid or petrous apex. It has been further defined as a three dimensional epidermoid structure exhibiting independent growth, replacing middle ear mucosa, and resorbing underlying bone. Although it is not a neoplastic lesion, it can be insidious and potentially dangerous to the patient. The term “cholesteatoma” was first used by Johannes Müller in 1838 to describe a true neoplasm he thought was “a pearly tumor of fat...among sheets of polyhedral cells”.
Attico-antral disease = unsafe type O.M.
- Infection starts in the attic and mastoid antrum (attico-antral).
- Commonly associated with cholesteatoma à bone erosion, so commonly causes cholesteatoma (unsafe).
Tags: MCQ, ENT, Cholesteatoma
Category: MAHE 2000 MCQs
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