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Updated: Apr 22, 2026

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In vivo Macrophage Imaging Using MR Targeted Contrast Agent for Longitudinal Evaluation of Septic Arthritis
Published on: October 20, 2013
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Ruminococcus gnavus: an unusual pathogen in septic arthritis
Marie Titécat1, Frédéric Wallet1, Marie-Hélène Vieillard2
1Institute of Microbiology, University Hospital Center, Lille, France.
Anaerobe
|October 15, 2014
Summary
Ruminococcus gnavus, a gut bacterium, can cause septic arthritis. This case highlights the importance of identifying this pathogen in joint infections.
Area of Science:
- Microbiology
- Infectious Diseases
- Clinical Diagnostics
Background:
- Ruminococcus gnavus is a commensal anaerobic Gram-positive coccus residing in the gastrointestinal tract.
- Bacterial identification is crucial for effective treatment of infectious diseases.
Observation:
- A case of septic arthritis was observed.
- The causative agent was identified as Ruminococcus gnavus.
Findings:
- Mass spectrometry and 16S rRNA sequencing were used for accurate identification of Ruminococcus gnavus.
- This confirms Ruminococcus gnavus as a potential pathogen in septic arthritis.
Implications:
- This case expands the spectrum of known infections caused by Ruminococcus gnavus.
- Highlights the utility of advanced diagnostic techniques in identifying rare pathogens.
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