“…1,12,15,22 All studies report a better prognosis for jejunal or ileal adenocarcinomas than for duodenal adenocarcinomas, with 5-year survivals of 26-37.6%, 25-37.8%, and 15-28.2%, respectively. 13,15 Only half of the duodenal tumors in the literature were treated with cancer-directed surgery, versus 90% of jejunal and ileal tumors. These differences in treatment are probably due to anatomic constraints.…”