Related Experiment Video
Updated: Mar 8, 2026
Colon Ascendens Stent Peritonitis CASP - a Standardized Model for Polymicrobial Abdominal Sepsis
Published on: December 18, 2010
Multiple liver abscesses and bacteremia caused by Streptococcus constellatus infection: a case report
Nobuhiro Akuzawa1, Takashi Hatori2, Yonosuke Kitahara2
1Department of General Medicine National Hospital Organization Shibukawa Medical Center 383 Shiroi Shibukawa Gunma 377-0280 Japan.
Abstract:
The Streptococcus milleri group (SMG) comprises commensal mucosal bacteria. Pyogenic liver abscesses due to hematogenous SMG infection are rare but can be observed even in healthy patients. In such cases, physicians should consider the existence of primary lesions that allow penetration of the SMG.
Insights
The Streptococcus milleri group (SMG) causes rare pyogenic liver abscesses, even in healthy individuals. Physicians should investigate primary lesions for SMG entry when diagnosing these infections.
Area of Science:
- Microbiology
- Infectious Diseases
- Hepatology
Background:
- The Streptococcus milleri group (SMG) consists of commensal bacteria residing on mucosal surfaces.
- Pyogenic liver abscesses are serious infections of the liver, often caused by bacterial spread.
Observation:
- Hematogenous spread of SMG can lead to pyogenic liver abscesses.
- These infections, while rare, can occur in individuals without apparent underlying health issues.
Findings:
- The study highlights that pyogenic liver abscesses caused by SMG can manifest in healthy patients.
- This suggests that occult primary lesions may serve as an entry point for SMG into the bloodstream.
Implications:
- Physicians should maintain a high index of suspicion for SMG as a causative agent of liver abscesses, particularly in unexplained cases.
- Identifying primary lesions is crucial for effective treatment and management of SMG-related liver abscesses.