methicillin-resistant Staphylococcus aureus

Definition: Methicillin-resistant Staphylococcus aureus (MRSA) is an emerging cause of infections outside of health care settings.

Images

 cutaneous MRSA infections

• https://twitter.com/WebMD/status/805305703657336833

Pathology

 MRSA cellulitis
 MRSA skin abscess
 necrotizing fasciitis
 pyomyositis
 myositis
 community-onset skin abscesses
 outbreaks of furunculosis
 severe necrotizing pneumonia
 shock
 musculoskeletal infection
 urinary tract infection
 perinephric abscess
 bacteremia
 empyema
 lung abscess
 ophtalmic infections (16766029)

• orbital cellulitis
• endogenous endophthalmitis
• panophthalmitis
• lid abscesses
• septic venous thrombosis

 staphylococcal osteomyelitis +/- venous thrombosis (16651323)

See also

 Panton-Valentine leukocidin toxin
 staphylococcal cassette chromosome mec (SCCmec) type IV
 community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA )
 healthcare-associated methicillin-resistant Staphylococcus aureus (HA-MRSA )

References

 Daum RS. Clinical practice. Skin and soft-tissue infections caused by methicillin-resistant Staphylococcus aureus. N Engl J Med. 2007 Jul 26;357(4):380-90. PMID: 17652653