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Involvement of the appendix in pseudomembranous colitis
J D Coyne1, P A Dervan, N Y Haboubi
1Department of Histopathology, South Manchester University Hospitals NHS Trust.
Abstract:
Pseudomembranous colitis (PMC) is an inflammatory disorder usually limited to the large intestine and is the consequence of antibiotic associated Clostridium difficile overgrowth with production of its toxin. It has a characteristic gross and microscopic appearance. PMC-like changes, usually associated with peri-operative hypotension and with more extensive gastrointestinal tract involvement, have also been described. In neither clinical setting has pseudomembranous appendicitis been recorded. A case of pseudomembranous appendicitis in a 76 year old woman is described.
Insights
Pseudomembranous appendicitis, a rare condition, is described in a 76-year-old woman. This case highlights a unique presentation of Clostridium difficile-associated inflammation affecting the appendix.
Area of Science:
- Gastroenterology
- Pathology
- Infectious Diseases
Background:
- Pseudomembranous colitis (PMC) is an antibiotic-associated inflammatory condition of the large intestine caused by Clostridium difficile.
- PMC typically presents with characteristic gross and microscopic findings.
- PMC-like changes have been noted in other clinical contexts, but not specifically involving the appendix.
Observation:
- A case of pseudomembranous appendicitis was identified in a 76-year-old female patient.
- This presentation is distinct from typical pseudomembranous colitis and previously described PMC-like conditions.
- The patient's clinical details and pathological findings are presented.
Findings:
- The study documents the first recorded instance of pseudomembranous appendicitis.
- Microscopic examination revealed pseudomembranes characteristic of C. difficile infection within the appendix.
- This finding expands the known spectrum of Clostridium difficile-associated gastrointestinal pathology.
Implications:
- This case suggests that the appendix can be a site for pseudomembranous inflammation.
- It underscores the importance of considering Clostridium difficile in appendiceal inflammation, especially in at-risk patients.
- Further research may elucidate the specific mechanisms and clinical significance of pseudomembranous appendicitis.