Transverse Colon Submucosal Lipoma Presenting With Colocolic Intussusception

A 48-year-old man presented with colicky abdominal pain of 2 days’ duration associated with constipation, but no nausea or vomiting. His past medical history was significant for recurrent attacks of constipation. His abdomen was distended and tender, without rebound tenderness. Abdominal obstructive series radiographs showed air fluid levels. An abdominal CT showed a 4 x 4.5 cm transverse colon lipoma acting as a lead point of a colocolic intussusception (Figure 1). The length of the intussusception segment was about 11.5 cm, with ischemic changes and intramural gas. The intussusception was surgically reduced and the colon segment containing the lipoma was resected, followed by transverse colocolic anastomosis. Pathology results showed pure lipoma with no changes of liposarcoma. The postoperative period was uneventful.