RESUMO

Primary or metastatic neoplasms of the small bowel are rare. The most common cause of intestinal intussusceptionin adults are tumors of the small bowel. The intraluminal lesion alters the normal peristalsis of the intestine and permits the displacement of the proximal intestine to the interior of a segment of the distal intestine generally fixed. The preoperative diagnosis is difficult and computed tomography and intestinal barium are the most useful studies in order to define this entity. The management is surgical and consists in the reduction of the affected segment and the surgical resection with margin of mesentery. The prognosis correlates with the result of the histopathological study of the original tumor. The present study analyzes a case of lipoma of small bowel causing intussusception and intestinal occlusion. At laparotomy an ileocecal intussusception caused by an intraluminal tumor in the terminal ileon was evidenced, performing right hemicolectomy and end- to- end ileotransverse colostomy. The microscopic study revealed a lipoma of ileum.