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Colonic malacoplakia: unusual association with ulcerative colitis
Journal of Gastroenterology and Hepatology
|January 1, 1993
Summary
This case study suggests colon malacoplakia may arise from immunosuppression. Discontinuation of immunosuppressive steroids led to the patient's malacoplakia resolution, supporting this link.
Area of Science:
- Gastroenterology
- Immunology
- Pathology
Background:
- Malacoplakia is a rare condition characterized by the presence of Michaelis-Guttmann bodies.
- Ulcerative colitis is a chronic inflammatory bowel disease requiring immunosuppressive therapy.
Observation:
- A 44-year-old female with ulcerative colitis presented with colon malacoplakia.
- Histological, electron microscopic, and X-ray micro-analysis confirmed malacoplakia.
- The patient had been treated with high-dose systemic steroids for ulcerative colitis.
Findings:
- Colon malacoplakia resolved after discontinuing systemic steroid therapy.
- Review of 26 prior cases suggests malacoplakia is secondary to immunosuppression from drugs, malignancy, or debilitating diseases.
Implications:
- This case highlights a potential link between iatrogenic immunosuppression and the development of colon malacoplakia.
- Further research is warranted to elucidate the precise mechanisms underlying immunosuppression-induced malacoplakia.
- Clinical management of patients with inflammatory bowel disease on immunosuppressants should consider the risk of secondary malacoplakia.