<prompt> Most common presentation of Benign Small bowel tumours includeSmall bowel obstructionWith mass effectRecurrent gastrointestinal bleedingIncidental finding on laparotomy  <response>: .Malignant tumours of small bowel Adenocarcinoma is commonest - 40. Order of occurrence - duodenum, jejunum and ileum GIST is new entity comprising smooth muscle tumors also Carcinoid and lymphoma has got better prognosis Adenocarcinoma and GIST has got poor prognosis Presentations are pain, diarrhoea, weight loss, anaemia, melaena, palpable mass, intestinal obstruction and metastatic features Bleeding and perforation are common in lymphoma and sarcoman Enteroclysiscapsule endoscopyCT scanhistochemistry are needed to diagnose Surgery is the main therapy Imatinib is used in GIST with ourable results. ref:SRB;s manual of surgery ,ed 3,pg no 812 