Barium Meal & Small Bowel Studies — Practice

A 38-year-old woman with episodic flushing and chronic watery diarrhoea undergoes a CT of the abdomen which shows a soft-tissue mass in the small-bowel mesentery with radiating linear strands of soft-tissue density extending into the surrounding mesenteric fat, associated with calcification and tethering of adjacent bowel loops producing a stellate or spoke-wheel appearance. Which is the most likely diagnosis?