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Related Experiment Videos

Common presentations of amebic liver abscess.

R J Hoffner1, T Kilaghbian, V I Esekogwu

  • 1Department of Emergency Medicine, Loma Linda University Medical Center, Loma Linda, CA, USA.

Annals of Emergency Medicine
|August 25, 1999
PubMed
Summary

Amebic liver abscess, a severe Entamoeba histolytica infection, often presents with fever and right upper quadrant pain. Early diagnosis using ultrasonography in the emergency department is crucial for timely treatment with metronidazole.

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Area of Science:

  • Infectious Diseases
  • Hepatology
  • Gastroenterology

Background:

  • Amebic liver abscess is the most common extraintestinal manifestation of Entamoeba histolytica, the causative agent of amebiasis.
  • This global infection can lead to severe, life-threatening complications.
  • The nonspecific nature of symptoms often complicates early diagnosis.

Purpose of the Study:

  • To identify common presentation patterns of amebic liver abscess.
  • To aid in the recognition of this condition in emergency departments.
  • To improve diagnostic accuracy and patient outcomes.

Main Methods:

  • Retrospective case series of patients with confirmed amebic liver abscess over a 5-year period.
  • Review of emergency department and inpatient records, including demographics, symptoms, physical and laboratory findings.

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  • Analysis of diagnostic modalities such as ultrasonography, CT scan, chest radiograph, and serum antibodies.

    • Main Results:

    • 75 patients reviewed; 80% male, mean age 35.5, 64% from Mexico.
    • Common symptoms: fever (77%), right upper quadrant abdominal pain (72%).
    • Ultrasonography (85%) and serum antibody titers (88%) were key diagnostic tools; ED diagnosis accuracy was 31.5%.

    Conclusions:

    • Amebic liver abscesses are diagnosed in US EDs, particularly in areas with immigrant populations from endemic regions.
    • Fever and RUQ pain in Hispanic men warrant high suspicion.
    • Bedside ultrasonography is valuable for diagnosis, with metronidazole as primary treatment.