• Athanasios Marinis, Anneza Yiallourou, Lazaros Samanides, Nikolaos Dafnios, Georgios Anastasopoulos, Ioannis Vassiliou, and Theodosios Theodosopoulos.
• Second Department of Surgery, Areteion University Hospital, Athens Medical School, University of Athens, 76 Vassilisis Sofia's Ave., 11528, Athens, Greece. drmarinis@gmail.com
• World J. Gastroenterol. 2009 Jan 28; 15 (4): 407-11.

AbstractIntussusception of the bowel is defined as the telescoping of a proximal segment of the gastrointestinal tract within the lumen of the adjacent segment. This condition is frequent in children and presents with the classic triad of cramping abdominal pain, bloody diarrhea and a palpable tender mass. However, bowel intussusception in adults is considered a rare condition, accounting for 5% of all cases of intussusceptions and almost 1%-5% of bowel obstruction. Eight to twenty percent of cases are idiopathic, without a lead point lesion. Secondary intussusception is caused by organic lesions, such as inflammatory bowel disease, postoperative adhesions, Meckel's diverticulum, benign and malignant lesions, metastatic neoplasms or even iatrogenically, due to the presence of intestinal tubes, jejunostomy feeding tubes or after gastric surgery. Computed tomography is the most sensitive diagnostic modality and can distinguish between intussusceptions with and without a lead point. Surgery is the definitive treatment of adult intussusceptions. Formal bowel resection with oncological principles is followed for every case where a malignancy is suspected. Reduction of the intussuscepted bowel is considered safe for benign lesions in order to limit the extent of resection or to avoid the short bowel syndrome in certain circumstances.

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