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Published on: February 19, 2019
Hepatobiliary infections caused by Haemophilus species
T A O'Bryan1, C J Whitener, M Katzman
1Division of Infectious Diseases and Epidemiology, Milton S. Hershey Medical Center, Pennsylvania State University, Hershey 17033.
Abstract:
Haemophilus species are rarely associated with hepatobiliary infections. We report a case of hepatic abscess caused by Haemophilus paraphrophilus and review the English-language literature for reports of infections of the liver and biliary system caused by Haemophilus species. Most patients identified had predisposing conditions. The pathogenesis of hepatobiliary infections due to Haemophilus species may involve ascending spread from the gastrointestinal tract or hematogenous seeding following oropharyngeal colonization.
Insights
Haemophilus paraphrophilus rarely causes hepatobiliary infections. This review highlights predisposing factors and potential pathways like gastrointestinal spread or oropharyngeal colonization for these rare liver and biliary system infections.
Area of Science:
- Hepatology
- Infectious Diseases
- Microbiology
Background:
- Haemophilus species are typically associated with oropharyngeal infections.
- Hepatobiliary infections are uncommon manifestations of Haemophilus species.
- Understanding the epidemiology and pathogenesis of these rare infections is crucial.
Observation:
- A case of hepatic abscess caused by Haemophilus paraphrophilus is presented.
- A literature review identified other instances of hepatobiliary infections due to Haemophilus species.
- Predisposing conditions were frequently observed in affected patients.
Findings:
- Haemophilus paraphrophilus can cause hepatic abscesses.
- Ascending spread from the gastrointestinal tract is a potential route of infection.
- Hematogenous seeding from oropharyngeal colonization may also lead to hepatobiliary infections.
Implications:
- This case and review expand the known spectrum of Haemophilus-related infections.
- Identifying predisposing factors can aid in early diagnosis and management.
- Further research into the pathogenesis may reveal novel therapeutic targets for rare hepatobiliary infections.
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