A ruptured mesenteric lymphangioma causing peritonitis: a case report.

Cystic lymphangioma is a rare disease that is mainly diagnosed in childhood. When diagnosed, the lesion presents an indication for surgery due to the risk of serious complications. Herein, we report the case of a 32-year-old patient who presented to the emergency room for abdominal pain that developed 2 days before with worsening symptoms and abdominal pain in the last 24 hr. The computed tomography showed diffuse wall thickening of the jejunum and proximal ileum with mesenteric fat infiltration, a mesenteric collection, and a moderate volume of ascites extending into the pelvis. A laparotomy was performed, revealing diffuse chemical peritonitis with a crater-like lesion in the jejunal mesentery, secreting lymphatic fluid. The mesenteric lesion was then excised, and the histological examination showed a ruptured cystic lymphangioma. Lymphangiomas of the small bowel mesentery are rare and may be exceptionally associated with bowel occlusion or peritonitis. [ABSTRACT FROM AUTHOR]

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