Ear Pathology

Question 1

Describe the normal lining of the auditory meatus & external canal

Question 2

What glands are in the auditory meatus & external canal

Question 3

Describe the lining of the middle ear

Question 4

What is contained in the middle ear

Question 5

What is contained in the inner ear

Answer 6

Cystic lesion in middle ear. usually acquired but can be congenital.

Answer 7

Acquired - Superior posterior middle ear/ petrous apex
Congenital - anterior superior

Question 8

Pathophysiology of acquired cholesteatoma

Answer 8

chronic otitis media and perforated tympanic membrane (acquired)

Question 9

Describe the appearance of a cholesteatoma

Question 10

Describe the histology of cholesteatoma

Question 11

What is the main type of tumour of the ear

Answer 11

squamous cell carcinoma

Answer 12

Most common tumour of temporal bone
Is associated with the vestibular portion of the vestibulocochlear nerve (VIII)

Question 13

What would consider in a young individual presenting with a bilateral vestibular schwannoma

Answer 13

neurofibromatosis (NF) type 2

Question 14

Characteristic feature of vestibular schwannoma

Answer 14

Palisading of the nuclei (rocky bodies)