Mesenteric cysts are a very rare cause of abdominal pain and have a wide range of underlying causes.
Mesenteric cysts are rare, with a reported incidence of 0.5-1 per 100,000 admissions .
Patients usually present with abdominal pain and/or mass, although the cysts can be asymptomatic, incidental finding .
- lymphatic: simple lymphatic cyst and lymphangioma
- mesothelial: simple mesothelial cyst, benign cystic mesothelioma, and malignant cystic mesothelioma
- enteric: enteric cyst and enteric duplication cyst
- mature cystic teratoma (dermoid cysts)
- non-pancreatic pseudocysts (infectious and traumatic cysts)
Mesenteric cysts can occur anywhere in the mesentery, from the duodenum to the rectum, and may extend into the retroperitoneum. Mesenteric cysts are cystic mesenteric lesions that can be further characterized by the wall thickness (thin or thick-walled) and their loculation (unilocular or multilocular).
The main differential diagnosis is:
- pancreatic pseudocyst: usually not only abuts but involves the pancreas directly, and communicates with the main pancreatic duct
- ovarian cyst
- meconium pseudocyst
- urachal cyst
- peritoneal hydatidosis
- fetal enteric duplication cyst
- Duplikationszysten gastrointestinal
- zystisches Lymphangiom des Mesenterium