Necrotizing pneumonia caused by community-acquired methicillin-resistant Staphylococcus aureus: an increasing cause of "mayhem in the lung".
Although long recognized as a nosocomial organism, methicillin-resistant Staphylococcus aureus (MRSA) has been noted to have an increasing incidence in both immunocompromised and otherwise healthy people in the community. Community-acquired MRSA (CA-MRSA) is genetically distinct from hospital-acquired MRSA and frequently expresses the Panton-Valentine leukocidin toxin, which confers an aggressive necrotizing phenotype and is accompanied by a poor prognosis. We present a case of CA-MRSA pneumonia with the aim to alert the radiologist of the radiographic manifestations of this increasingly encountered and frequently fatal disease.
Ebert
Mark D
MD
H. Russell Morgan Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA. ebertmark@jhmi.edu
Sheth
Sheila
S
Fishman
Elliot K
EK
D000328:Adult; D017714:Community-Acquired Infections / Q000000981:diagnostic imaging* / Q000382:microbiology; D005260:Female; D006801:Humans; D055624:Methicillin-Resistant Staphylococcus aureus; D009336:Necrosis; D018410:Pneumonia, Bacterial / Q000000981:diagnostic imaging* / Q000382:microbiology; D013203:Staphylococcal Infections / Q000000981:diagnostic imaging / Q000382:microbiology; D014057:Tomography, X-Ray Computed