<prompt> The mechel;s diveiculum is situated within about ... cm from the ileocecal valve256075100  <response>: .It is a congenital diveiculum arising from the terminal ileum and is pa of the unobliterated proximal poion of the vitello intestinal duct. It is- 2 common. 2 feet from the ileo-caecal valve. 2 inch in length. It is congenital, results from incomplete closure of vitello-intestinal duct. It is the most common congenital anomaly of small intestine. Arises from the antimesenteric border of the ileum, containing all three layers of the bowel with independent blood supply. ref:SRB;s manual of surgery,ed 3,pg no 798 