Mastoiditis

Valeria Fabre, M.D.

PATHOGENS

PATHOGENS

PATHOGENS

Acute mastoiditis: typical pathogens

  • Streptococcus pneumoniae
  • Haemophilus influenzae
  • Moraxella catarrhalis
  • Staphylococcus aureus
  • Streptococcus pyogenes (GAS)
  • Pseudomonas aeruginosa

Chronic mastoiditis is usually associated with recurrent or chronic otitis media (and prior antibiotic use), and some likely pathogens are encountered.

  • Pseudomonas aeruginosa
  • S. aureus
  • Enterobacteriaceae
  • Anaerobes:
    • Bacteroides
    • Prevotella
    • Fusobacterium
    • Peptostreptococcus
  • Mycobacterium tuberculosis (rare)

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