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Acute amebic appendicitis
1Department of General Surgery, Regional General Hospital No. 1 "Gabriel Mancera", Mexican Institute of Social Security (IMSS), Mexico City, Mexico, USA.
World Journal of Surgery
|June 1, 2006
Summary
Acute appendicitis of amebic origin is rare but presents earlier in patients under 20. This condition, while uncommon, shows a higher incidence of fecal fistula compared to typical appendicitis.
Area of Science:
- Gastroenterology
- Infectious Diseases
- Surgical Pathology
Background:
- Acute appendicitis of amebic origin is an infrequent cause of appendicitis.
- Amebic appendicitis is often overlooked in differential diagnoses.
Purpose of the Study:
- To investigate the clinical characteristics of acute appendicitis of amebic origin.
- To compare amebic appendicitis with non-amebic appendicitis.
Main Methods:
- Retrospective review of 4093 appendectomy cases in patients over 16.
- Histopathologic analysis to identify amebic trophozoites in appendix specimens.
- Comparison of amebic appendicitis cases with a control group of non-amebic appendicitis.
Main Results:
- 93 cases (2.3%) showed lesions suggestive of amebiasis; 86 were analyzed.
- No significant differences in sex distribution, inflammation, or complication rates compared to typical appendicitis.
- Amebic appendicitis presented significantly earlier (under 20 years) and had a higher fecal fistula rate (2.3%).
Conclusions:
- Amebic appendicitis is rare and clinically similar to other appendicitis forms, except for earlier onset and increased fecal fistula risk.
- Clinical suspicion is raised by a "cardboard-like" cecal consistency.
- Early identification and treatment are crucial to prevent complications.
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