cholesteatoma Flashcards
1
Q
what
A
abnormal collection of squamous epithelial cells in middle ear
non-Ca but can invade local structures and invades bones of middle ear
2
Q
predisposes to
A
infection
3
Q
pathophysiology
A
squamous epithelial cells originate from outer surface TM
small area TM gets sucked inwards due to negative pressure middle ear (ET dysfunction)
squamous epithelial cells of this pocket proliferate and grow
4
Q
can damage
A
ossicles –> permanent hearing loss
5
Q
presentation
A
foul discharge unilateral conductive hearing loss infection pain vertigo facial N palsy
6
Q
otoscopy
A
abnormal build-up whitish debris/crust in upper TM
7
Q
confirming diagnosis
A
CT
8
Q
treatment
A
surgical removal
