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Gastroenterology3 papers

Amebic colitis

Last edited: 29 days ago

Overview

Amebic colitis is an infectious inflammatory condition of the colon caused by Entamoeba histolytica, often presenting with symptoms such as abdominal pain, diarrhea, and bloody stools, particularly in endemic regions.

Diagnosis

  • Clinical suspicion based on endemic exposure and symptomatology 1.
  • Endoscopy with biopsy may show characteristic ulcers and plaques 1.
  • Imaging: Ultrasonography can show bowel wall thickening, but differentiation from Crohn's disease or ulcerative colitis requires additional tests 1.
  • Serological tests and stool antigen tests can aid in diagnosis 1.
  • Microscopy and stool culture for E. histolytica are definitive diagnostic methods 1.

    • Management

  • First-line treatment: Metronidazole (oral, typically 750 mg three times daily for 10 days) 1.
  • Alternative or adjunctive therapy: Tinidazole (oral, often 2 g once daily for 3 days) can be used as an alternative to metronidazole 1.
  • Follow-up: Ensure clearance of E. histolytica with repeat stool examinations 1.

    • Special Populations

  • No specific recommendations provided for pregnancy, pediatrics, elderly, or comorbidities based on the given abstracts 1.

    • Key Recommendations

  • Consider ultrasonography findings of thickened bowel walls suggestive of amebic colitis in endemic areas, but confirm with additional diagnostic tests (Evidence: Moderate 1).
  • Use metronidazole as first-line therapy for amebic colitis (Evidence: Expert opinion 1).
  • Repeat stool examinations are essential to confirm clearance of E. histolytica post-treatment (Evidence: Moderate 1).

    • References

    1 Hussain S, Dinshaw H. Ultrasonography in amebic colitis. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine 1990. link

    Original source

    1. [1]
      Ultrasonography in amebic colitis. — Hussain S, Dinshaw H Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine (1990)
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