Which organisms cause retropharyngeal abscess (RPA) in adults?

Updated: Jan 08, 2021
  • Author: Joseph H Kahn, MD; Chief Editor: Gil Z Shlamovitz, MD, FACEP  more...
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Answer

Organisms causing retropharyngeal abscess in adults include the following [38, 25] :

  • Group A streptococcus (Streptococcus pyogenes)

  • Streptococcus viridans

  • Peptostreptococcus species (now Peptoniphilus) [11]

  • Fusobacterium species [11]

  • Staphylococcus aureus

  • Methicillin-resistant Staphylococcus aureus ( MRSA) [39]

  • Klebsiella pneumoniae

  • Bacteroides species

  • Staphylococcus epidermidis

  • Anaerobic streptococci

  • Bartonella henselae

  • Eikenella corrodens

  • Escherichia coli

  • Prevotella species

  • Pseudomonas aeruginosa [11, 7]

  • Group C or G streptococci [7]

  • Extended-spectrum beta-lactamase (ESBL)–producing Enterobacteriaceae [7]

  • Mycobacterium tuberculosis [40, 2]

  • Actinomycetes [41]

  • Cryptococcus neoformans [42]


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