ENT

Question 1

3 Xray findings of RPA

Answer 1

1. C2> 7mm (increased prevertebral thickening)
2. C6 > 14mm (increased prevertebral thickening)
3. loss of normal cervical lordosis due to muscle inflammation
4. in infants < 5 years, prevertebral space should not be > 1/2 width of vertebral body
5. in children > 5 years, prevertebral space should not be > width of vertebral body @ C2

Question 2

CT findings suggestive of RPA

Answer 2

1. scalloping
2. complete ring enhancement
3. irregularity of the abscess wall.

Question 3

Antimicrobial Treatment for RPA

Answer 3

1. clindamycin (30mg/kg/day) divided in 4 doses
2. if abscess is small < 2 cm, IV abx can be appropriate alone.
3. > 2 cm abscess, or persistent fever despite 48 hours of IV abx requires surgical drainage.