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Crohn's disease confined to the appendix
Insights
Crohn's disease limited to the appendix is rare. This study found these cases have a favorable prognosis, with no patients developing further disease manifestations after surgery.
Area of Science:
- Gastroenterology
- Surgical Pathology
Background:
- Crohn's disease (CD) is a chronic inflammatory bowel disease.
- Appendiceal involvement in Crohn's disease is exceptionally rare, with fewer than 50 reported cases.
- This study investigates a series of patients with isolated appendiceal Crohn's disease.
Purpose of the Study:
- To report on a series of 12 cases of Crohn's disease confined to the appendix.
- To analyze the clinical presentation, surgical indications, and pathological findings.
- To evaluate the long-term prognosis of patients with this rare condition.
Main Methods:
- Retrospective review of 12 patients with histologically confirmed isolated appendiceal Crohn's disease.
- Analysis of surgical indications, operative findings, and postoperative outcomes.
- Long-term follow-up to assess disease progression and recurrence.
Main Results:
- 12 cases represented 6% of all operated Crohn's disease patients.
- Surgical indications included appendicitis (8), appendiceal abscess (2), suspected pyosalpinx (1), and ovarian cyst (1).
- Appendices were enlarged; giant-cell granulomas were found in all but one case. Two patients had early septic complications. No cecal fistulization occurred. Median follow-up was 13.8 years.
Conclusions:
- Crohn's disease confined to the appendix is a rare but distinct entity.
- Patients with isolated appendiceal Crohn's disease demonstrate a favorable prognosis.
- No further disease manifestations were observed in the long term, suggesting localized disease.
Abstract:
Crohn's disease confined to the appendix is a rare entity, less than 50 cases having been reported. The present study reports on another 12 cases representing 6 per cent of all 194 patients operated upon for Crohn's disease in a total, unselected series. The indications for surgery were appendicitis in eight patients, appendiceal abscess in two, suspected pyosalpinx in one, and an ovarian cyst in one. The appendices were in all cases strikingly enlarged. Giant-cell granulomas, without microabscesses were detected in all but one patient. Two patients had early septic postoperative complications. Fistulization from the cecum did not occur. The median observation time after operation was 13.8 years. Since none of the patients had further manifestations of the disease, it is concluded that patients with Crohn's disease confined to the appendix have a favorable prognosis.