Intussusception. Part 3: Diagnosis and management of those with an identifiable or predisposing cause and those that reduce spontaneously.

In the previous two parts of this review on intussusception, the diagnosis and management of symptomatic, "idiopathic" ileocolic and ileoileocolic intussusceptions, which are considered to result from hyperplasia of lymphoid tissue in the distal ileum, were discussed. In this third part, those intussusceptions with an identifiable cause including pathologic lead point, those due to gastrojejunostomy or other feeding tubes, and those that are seen in the postoperative period as well as those that may be asymptomatic or may reduce spontaneously (usually limited to the small bowel) are discussed.