PBL extra LOs Flashcards
1
Q
what is ostosclerosis
A
abnormal bone remodeling in the middle ear -> formation of new bone around the base of the stapes, resulting in progressive hearing loss;
can be hereditary
2
Q
what organism is most likley to cause otitis externa
A
Pseudomonas aeruginosa -> swimmers ear
3
Q
5 peripheral causes of vertigo
A
- BPPV
- acute labyrinthitis
- Meniere’s disease
- vestibular neuritis
- ramsey hunt syndrome
4
Q
why can carotid dissection present with tinnitus
A
5
Q
why is the triangle/cone of light seen on the tympanic membrane
A
due to the concave nature of the membrane
6
Q
what is toynbee’s test
A
swallowing when the nose is obstructed, record the middle ear pressure
