Cummings most common

Question 1

most common area of facial nerve dehiscence due to cholesteatoma

Answer 1

superior or adjacent to oval window (80%)

Question 2

most common site of congenital dehiscence of the facial nerve

Answer 2

tympanic segment

Question 3

most common disease of childhood, with the exception of viral upper respiratory infections

Answer 3

otitis media

Question 4

most common bacteria in infected cholesteatomas

Answer 4

Pseudomonas aeruginosa (31%)

Question 5

2nd most common AEROBIC bacteria in infected cholesteatomas`

Answer 5

Staphylococcus aureus (19%)

Question 6

most common ANAEROBIC bacteria in infected cholesteatomas

Answer 6

Peptococcus (12%) and Bacteroides sp. (12%)

Question 7

most common pediatric nasal mass

Answer 7

dermoid cyst

Question 8

most common cause of laryngeal or tracheal stenosis in adults (and mechanism)

Answer 8

PROLONGED INTUBATION

mucosal ulcer with or without bacterial infection cause perichondritis/chondritis with cartilage resorption or granulation tissue –> fibrose then scar contraction

Question 9

most common salivary gland malignancies (top 3)

Answer 9

1) Mucoepimermoid CA (34%) - most frequent in parotid
2) Adenoid cystic CA (22%) - most frequent in SMG & minor SG (except PNS)
3) Adenocarcinoma (18%) - most frequent in minor SG of nasal & PNS
4) Malignant mixed (14%)
5) Acinic cell CA (7%)
6) SCC (4%)