Abstract
The omphalomesenteric duct or vitelline duct is a remnant of the embryonic yolk sac. The omphalomesenteric duct connects the yolk sac to the gut in the developing embryo and provides nutrition until the placenta is established; the duct attenuates and separates from the intestine between the 5 and 7 weeks of gestation. Partial or complete failure of involution of the omphalomesenteric duct results in various residual structures. Meckel’s diverticulum is the most common of these structures. However, patent omphalomesenteric ducts occur infrequently (1,2). It has been reported that approximately 10 % of patients with a Meckel’s diverticulum have a fibrous cord attached to the umbilicus (3).
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