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[Encapsulating peritonitis disclosing primary melanoma of the small intestine: a case report]
H Bedioui1, K Chatti, S Chahbani
1Service de chirurgie générale, hôpital militaire de Tunis, Tunisie.
Abstract:
Encapsulating peritonitis is a chronic peritonitis leading to the constitution of the thick white nacred fibrosis membrane. It is a rare affection. Its physiopathology is poorly elucidated. Diagnosis is usually at operation. We report an unpublished case of a 36-year-old patient, admitted for an abdominal mass. The different investigations demonstrated small bowel tumor with entrapped ileal and jejunal loops within a capsule. Diagnosis was made at the time of operation by discovering an encapsulating peritonitis caused by a primary malignant melanoma of the small bowel, which is an exceptional affection.
Insights
Encapsulating peritonitis, a rare condition causing fibrous encapsulation, is poorly understood. This case highlights a primary small bowel melanoma as an exceptional cause.
Area of Science:
- Gastroenterology
- Oncology
- Pathology
Background:
- Encapsulating peritonitis is a rare chronic condition characterized by a thick fibrotic membrane.
- Its physiopathology remains poorly understood, with diagnosis often occurring during surgery.
Observation:
- A 36-year-old patient presented with an abdominal mass.
- Investigations revealed a small bowel tumor with entrapped intestinal loops within a capsule.
Findings:
- The diagnosis of encapsulating peritonitis was confirmed during surgery.
- The underlying cause was identified as a primary malignant melanoma of the small bowel, an exceptionally rare finding.
Implications:
- This case expands the differential diagnosis for abdominal masses.
- It underscores the importance of considering rare etiologies in complex gastrointestinal presentations.
- Further research into the physiopathology of encapsulating peritonitis is warranted.
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