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Related Concept Videos

Staphylococcal Skin Infections01:29

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Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
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Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within...
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Posterior Approach for Debridement of the Psoas Abscess
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[Psoas abscess caused by Staphylococcus lugdunensis].

María Tamargo Delpón1, Pablo Demelo-Rodríguez1, Juan Carlos Cano Ballesteros1

  • 1Departamento de Medicina Interna, Hospital General Universitario Gregorio Marañón, Madrid, España.

Revista Argentina De Microbiologia
|April 18, 2016
PubMed
Summary

Staphylococcus lugdunensis, a bacterium of increasing clinical significance, can cause rare psoas abscesses. This case highlights successful treatment of such an infection with intravenous cloxacillin in a patient with diabetes and rheumatoid arthritis.

Keywords:
Absceso de psoasInfección de partes blandasPsoas abscessSoft tissue infectionsStaphylococcus lugdunensis

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Area of Science:

  • Medical microbiology
  • Infectious diseases
  • Clinical case reports

Background:

  • Staphylococcus lugdunensis is an emerging pathogen with diverse clinical presentations.
  • Coagulase-negative staphylococcal infections are increasingly recognized.
  • Psoas abscesses are uncommon, particularly those caused by S. lugdunensis.

Observation:

  • A rare case of psoas abscess caused by Staphylococcus lugdunensis is presented.
  • The patient had comorbidities including diabetes mellitus and rheumatoid arthritis.
  • The abscess was located in the psoas muscle.

Findings:

  • Staphylococcus lugdunensis was identified as the causative agent of the psoas abscess.
  • Intravenous cloxacillin was administered as the treatment modality.
  • The patient showed a positive clinical response to the antibiotic therapy.

Implications:

  • This case expands the known spectrum of infections caused by Staphylococcus lugdunensis.
  • It underscores the importance of considering S. lugdunensis in complex infections.
  • Successful treatment with cloxacillin suggests its efficacy in managing S. lugdunensis psoas abscesses.