摘要AIM: To evaluate 20 adults with intussusception and to clarify the cause, clinical features, diagnosis, and management of this uncommon entity.METHODS: A retrospective review of patients aged >18 years with a diagnosis of intestinal intussusception between 2000 and 2008. Patients with rectal prolapse,prolapse of or around an ostomy and gastroenterostomy intussusception were excluded.RESULTS: There were 20 cases of adult intussusception.Mean age was 47.7 years. Abdominal pain, nausea,and vomiting were the most common symptoms. The majority of intussusceptions were in the small intestine (85%). There were three (15%) cases of colonic intussusception. Enteric intussusception consisted of five jejunojejunal cases, nine ileoileal, and four cases of ileocecal invagination. Among enteric intussusceptions,14 were secondary to a benign process, and in one of these, the malignant cause was secondary to metastatic lung adenocarcinoma. All colonic lesions were malignant. All cases were treated surgically.