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Pyogenic liver abscess caused by Streptococcus milleri. Case reports.
Summary
Streptococcus milleri is increasingly recognized as a cause of pyogenic liver abscess. Early identification from blood cultures is crucial for prompt diagnosis and treatment of this serious infection.
Area of Science:
- Microbiology
- Infectious Diseases
- Hepatology
Background:
- Pyogenic liver abscesses are serious infections.
- Streptococcus milleri is an emerging pathogen in liver abscesses.
- Diagnostic methods for anaerobic bacteria are becoming more common.
Observation:
- Streptococcus milleri is increasingly isolated from patients with pyogenic liver abscess.
- The organism is often isolated from blood cultures in patients with fever.
- Clinicians should consider liver abscess when Streptococcus milleri is detected.
Findings:
- Streptococcus milleri is a significant cause of pyogenic liver abscess.
- This organism is not an obligate anaerobe and is resistant to metronidazole.
- Two cases of primary pyogenic liver abscess caused by Streptococcus milleri are presented.
Implications:
- Routine anaerobic culture may increase the detection of Streptococcus milleri as a cause of liver abscess.
- Awareness of Streptococcus milleri's role is important for diagnosis and treatment.
- Metronidazole should not be relied upon for treating infections caused by this organism.