Cholesteatoma

Condition

• cholesteatoma

Definition 

• a sac of keratinising squamous epithelium that arises from a perforation involving the periphery of the TM 
• it is dangerous to the ear because it tends to expand and destroy adjacent structures, including the TM, ossicular chain and cochlear

Diagnosis 

• By recognising " the unsafe ear " / attic perforation on the tympanic membrane 

Treatment

• surgical removal is necessary

Reference

• John Murtagh's General practice 5th edition