[Ileo-colic intussusception in adult secondary to a large neoplasia of the lower caecal fundus].

Intussusception is rare in adults, accounting for 1 to 5 % of mechanical bowel obstructions. It is due to pathologic lead point within the bowel which is malignant in up to 77 % of cases. Benign lesions may also be responsible for intussusception (polyp, Meckel diverticulum). The lead point is pulled forward by normal peristaltism, prolapsing the affected segment of bowel into another segment. The most common presentation in adults is intermittent abdominal pain and bowel obstruction (nausea, vomiting, inability to pass gas or stools). Abdominal scanner is the key exam for the diagnosis and the treatment is always surgical resection.