Which radiographic findings suggest community-acquired MRSA community-acquired pneumonia (CA-MRSA CAP)?

Updated: Oct 31, 2019
  • Author: Stephanie L Baer, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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Rapid cavitation is not a typical feature of CAP.

Community-acquired methicillin-resistant S aureus (CA-MRSA) CAP presents as a fulminant CAP with rapid cavitation and necrotizing pneumonia caused by CA-MRSA (SCC mec IV) with the Panton-Valentine leucocidin (PVL) gene. CA-MRSA CAP sometimes occurs after influenza but may also develop independent of influenza, even in young healthy hosts.

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