A case report of a rare mesenteric lesion

Abstract

In a 82-year-old man with cardiovascular comorbidities underwent an abdominal CT scan, showing an incidental 9 centimeters cystic mesenteric lesion. An additional Magnetic Resonance Imaging (MRI) described a not-enhanced cystic lesion, with septa, developed in the mesenteric root with a mass effect without any sign of bowel invasion (Figure 1). This lesion was not observed in a previous abdominal CT scan. A cystic peritoneal mesothelium was suspected. A surgical treatment was thus indicated. Because of the location at the mesenteric root, an open approach was performed, revealing a cystic mesenteric multi-loculated lesion, with white liquid contain (Figure 2). A bowel resection of proximal jejunum (45 centimeters) was performed with an handsewn end-to-end anastomosis. Pathological analysis identified a cystic mesenteric lymphangioma without any criteria of malignity.