Idiopatic Sclerosing Encapsulating Peritonitis

Abstract

Introduction: Sclerosing Encapsulating Peritonitis (SEP) is a rare syndrome characterized by a chronic inflammatory process that leads to the formation of a thick fibrocollagenous membrane that surrounds and entraps intra-abdominal organs. As a result, although some cases may be asymptomatic, patients commonly develop symptoms of intestinal obstruction, and the diagnosis is often made incidentally during intra-abdominal surgeries. Case report: A 37-year-old male patient, a chronic alcoholic, was admitted with severe abdominal pain for seven days associated with abdominal distension, anorexia, and fever. Abdominal examination revealed signs of peritoneal irritation. Chest X-ray and abdominal computed tomography showed pneumoperitoneum and a large fluid collection, with signs of wall thickening extending through the pelvic cavity, parietocolic gutters, anterior abdominal cavity, and hepatodiaphragmatic space, causing compression of the hepatic parenchyma and displacement of intestinal loops. Due to these findings, the patient underwent an emergency exploratory laparotomy, in which a fibrocollagenous membrane, extensive bowel obstruction, and an abscess were identified. A total of 4.5 liters of purulent secretion were drained, the fibrous membrane was excised, the abdominal cavity was copiously washed, and a drain was placed in the upper right quadrant. He had a satisfactory resolution of the condition, without postoperative complications, and was discharged 11 days after the procedure. Conclusion: Initially, conservative management should be prioritized due to the technical difficulty of surgery and possible complications. However, in case of greater the level of peritoneal involvement and tissue adhesion, there is a higher chance of failure of conservative management, and surgical intervention may become necessary. Keywords: Peritonitis. Fibrosis Peritoneal. Intestinal Obstruction.