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Meckel’s diverticulum


1. A true congenital diverticulum which is a slight bulge in the small intestine present at birth and a vestigial remnant of the omphalomesenteric duct (also called the vitelline duct or yolk stalk). It is the most common malformation of the gastrointestinal tract is present in approximately 2% of the population, with males more frequently experiencing symptoms. (

2. The proximal part of the omphalomesenteric duct when persistent as a blind fibrous tube connected with the lower ileum. (

3. A congenital diverticulum in the ileum resulting from incomplete closure of the yolk sac. (

4. A pouch on the wall of the lower part of the intestine that is present at birth (congenital). The diverticulum may contain tissue that is the same as tissue of the stomach or pancreas. (

Word origin: From Latin deverticulum “a bypath,” from devertere “to turn aside.”

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