Vitellointestinal duct remnants.

Vitellointestinal duct/Omphalomesenteric duct is the conncetion between yolk sac and developing gut.

Usually it obliterates and disappears, but the persistence of this duct can lead to following anomalies.

  • Umbilical fecal fistula-Due to persistence of entire Vitello intestinal duct.
  • Umbilical sinus
  • Meckels diverticulum
  • Umbilical cyst/Vitelline cyst
  • Fibrous band-Between ileum and umbilicus, may lead to intestinal obstruction.

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