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What is The posterosuperior retraction pocket, if allowed to progress, will lead to: and explain in detail?
The option (b) should have been primary cholesteatoma and not secondary.Secondary cholesteatoma occurs due to migration of squamous epithelium through a preexisting perforation such as poslerosuperior marginal or total perforation (as occurs after acute necrotising otitis media). There is no term like tertiary cholesteatoma as given in option (d).