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Crohn's disease of the appendix
Petra C Stangl1, Friedrich Herbst, Peter Birner
1Departments of Clinical Pathology and Surgery, University of Vienna, Medical School, Währinger Gürtel 18-20, 1090 Vienna, Austria.
Virchows Archiv : an International Journal of Pathology
|April 17, 2002
Summary
Crohn's disease (CD) of the appendix is common in surgical patients, showing distinct histological features. Appendiceal CD often indicates more extensive colon involvement in patients with Crohn's disease.
Area of Science:
- Gastroenterology
- Surgical Pathology
- Inflammatory Bowel Disease
Background:
- Appendectomy is frequently the initial surgery for Crohn's disease (CD).
- Limited data exist on the characteristics of appendiceal CD.
- Understanding appendiceal involvement is crucial for comprehensive CD management.
Purpose of the Study:
- To analyze the histological features of appendices in patients with Crohn's disease.
- To compare appendiceal histology in CD patients versus controls.
- To determine if appendiceal CD correlates with broader colonic disease.
Main Methods:
- Histological examination of 90 appendices from CD patients undergoing resection.
- Comparison with 180 age- and sex-matched control appendices.
- Analysis of specific inflammatory patterns, granulomas, and ulcerations.
Main Results:
- 40% of CD patient appendices showed histological signs of CD.
- Transmural inflammation (67%) and mucosal inflammation (33%) were observed.
- Specific features included focal inflammation, crypt distortion, granulomas, and ulcerations.
- Luminal obliteration was higher, and acute appendicitis lower in CD patients (P<0.01).
- Appendiceal CD patients had more widespread colonic involvement (P<0.01).
Conclusions:
- Appendiceal Crohn's disease has unique histological characteristics differentiating it from non-CD appendicitis.
- Appendiceal CD is a frequent finding in surgical CD patients.
- The presence of appendiceal CD suggests more extensive colonic disease involvement.