From the case:
Omphalomesenteric duct
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The omphalomesenteric duct (also called the vitelline or vitellointestinal duct) communicating tract between the embryonic yolk sac and the primitive midgut.
Case Discussion
This duct obliterated 5-8th week of gestation. Omphalomesenteric duct anomalies include Meckel diverticulum, omphalomesenteric fistula, fibrous bands, cysts, omphalomesenteric sinus.
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