<unk> s (ODC, also known as an<unk>  duct remnant or vitelline cyst) are developmental defects relating to the closure of the<unk>  duct. It usually disintegrates within six weeks of gestation, but remnants of the cyst can sometimes be found along the intestines or umbilicus. Any remnants can be removed via surgical means.
Omphalomesenteric duct cyst
Enteric duplication cyst
Ectopic pancreas
Branchial cleft cyst
Rathke's cleft cyst
Omphalocele
Gartner's duct cyst
Vocal cord cyst