Increased abdominal circumference

Small mesenteric cysts are generally asymptomatic and have no signs. Larger cysts can cause abdominal distension, and the patient's abdominal circumference gradually increases. Mesenteric cysts are enlarged mesenteric lymphatics and cysts, so they are also called mesenteric chylocysts. The cause may be congenital dysplasia of the lymphatic wall, which makes the lymphatics appear tumor-like. It can also be caused by abdominal trauma, inflammation, surgery and other factors causing lymphatic adhesions, obstruction, poor flow of lymph fluid, stasis, and gradually forming cysts. It is also believed that the collaterals between lymphatic vessels and lymphatic vessels, lymphatic vessels and veins are occluded, so that the abundant collaterals also fail to make the lymph fluid flow smoothly, leading to cyst formation. The cyst can be single or multiple, containing chyle, or mixed with a small amount of blood and cellulose, and a large amount of serous. The cyst wall is composed of epithelial cells and connective tissue. About 60% of mesenteric cysts are located in the small intestinal mesentery, 24% are located in the mesentery, and another 16% are located in the retroperitoneum.

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