 The mesentery is a double layered peritoneal reflection which suspends the jejunum and the ileum from the posterior
abdominal cavity wall.Mesenteric involvement can be manifested by soft-tissue tumor replacement of normal
mesenteric fat, in the form of fat stranding, discrete or confluent nodules, mesenteric mass, and anomalous fixation
of small bowel loops due to stiff and retractile mesentery, produces characteristic pleated and stellate patterns
(Fig.9, 10).