Intussusception of the by-passed segment after jejunoileal by-pass for obesity. A cryptic problem.

Intussusception involving the excluded small bowel segment is an infrequent complication following intestinal by-pass procedures for morbid obesity. Because the intussusception involves bowel not in continuity with the alimentary stream, the usual diagnostic clinical and radiographic patterns fail to appear and recognition is usually delayed. This paper reports in detail such a patient, who was relieved of prolonged abdominal pain by operation. Previously reported patients are reviewed.