Sclerosing Encapsulating Peritonitis: A Rare Cause of Intestinal Obstruction.

Sclerosing encapsulating peritonitis (SEP) is a rare clinical entity that may cause small bowel obstruction. It is characterized by a thick fibrocollagenous cocoon-like membrane. Surgical intervention is the mainstay of treatment. A 36-year-old Pakistani man presented with recurrent attacks of colicky abdominal pain, distention, vomiting, and constipation. Abdominal CT revealed a thick enhanced membrane forming a sac that contained clusters of small intestinal loops. Exploratory laparotomy showed a thick membrane containing the small bowel and extensive inter-loop adhesions. The sac underwent decortication and excision, inter-loop adhesions were released, and an appendectomy was performed. The patient tolerated the procedure and was discharged in good condition.