 Boundaries of dissection included the ureters laterally, common ileac arteries at uterine crossover inferiorly, and the retroperitoneal duodenum superiorly with careful preservation of the inferior mesenteric artery. 
Boundaries of dissection included the ureters laterally , common ileac arteries at uterine crossover inferiorly , and the retroperitoneal duodenum superiorly with careful preservation of the inferior mesenteric artery .