Intro - Microbio

Question 1

In pediatric population, what are the common causes of retropharyngeal lymphadenitis?

Answer 1

1. Acute rhinosinusitis
2. Tonsillitis
3. Pharyngitis

Question 2

What accounts for 10-15% cause of deep neck infections in pediatric population especially in the setting of recurrent DNI?

Answer 2

Congenital cysts
(Branchial cleft cyst, Thyroglossal duct cyst)

Question 3

In pediatric population, what is the most common organism causing DNI?

Answer 3

Staphylococcus aureus - arising from the waldeyer ring

Question 4

In adults, what is the most common organism that cause of DNI?

Answer 4

1st: Streptococcus sp (S. viridans) - dental in origin

2nd: Staphylococcus

Question 5

Odontogenic infections mixed flora

Answer 5

Streptococcus milleri group ( subset pf S. Viridans),
Prevotella (Bacteroides),
Peptostreptococcus,
Staphylococcus

Question 6

Most common site of cervicofacual actinomycosis

Answer 6

Angle of mandible region

Question 7

Granulomatous reaction with central abscess formation and necrosis with “SULFUR GRANULES”

Answer 7

Actinomycosis

Question 8

Cat scratch disease

Answer 8

Bartonella henselae
-Pleomorphic gram negative bacillus

Question 9

Management of atypical neck space infections

Answer 9

NON-SURGICAL
- I&D procedures may result in chronic wound or fistulous tract

Question 10

Most common source of Deep Neck Infection

Answer 10

Odontogenic infection (decaying tooth and poor oral hygiene)