Ch. 359 - Liver Abscess

Question 1

50% of liver abscesses are seen in children of what age group

Answer 1

Less than 6 y/o

Question 2

MC pathogenic organisms in children with pyogenic liver abscesses

Answer 2

1) S. aureus 2) Strep spp 3) E. coli 4) K. pneumoniae 5) Salmonella 5) Anaerobic organisms 6) E. histolytica 7) Toxocara canis

Question 3

Multiple micro abscesses in the liver are most commonly secondary to

Answer 3

Bacteremia, candidemia, or cat scratch disease

Question 4

Lead single agent that causes cryptogenic liver abscess in children without underlying liver or intestinal tract disease

Answer 4

S. aureus

Question 5

T/F Jaundice is common in children with liver abscess

Answer 5

F

Question 6

Result of blood culture in patients with liver abscess is positive in ___%

Answer 6

50

Question 7

Confirms the diagnosis of a liver abscess

Answer 7

UTZ or CT scan

Question 8

More common, liver abscess: Solitary vs multiple

Answer 8

Solitary in 70%

Question 9

More common, liver abscess: Location

Answer 9

Right lobe of liver in 75%

Question 10

T/F Treatment of liver abscess requires needle aspiration or surgical drainage

Answer 10

T

Question 11

Treatment for amebic liver abscess

Answer 11

Metro or Tinidazole + Paromomycin

Question 12

Duration of antibiotic therapy for liver abscess

Answer 12

IV for 2-3 weeks followed by oral to complete 4-6 weeks

Question 13

T/F Recovery of E. histolytica from the stool of a patient with liver abscess is pathogenic and highly suggestive of an amebic abscess

Answer 13

T

Question 14

Empirical initial antibiotic regimens for liver abscess

Answer 14

Ampi/sul, ticarcillin/clavulanic acid, pip/taz