[Cystic mass of the pancreatic region associated with elevated CA 19-9 serum levels revealing a colonic duplication in an adult].

Intestinal duplications are rare embryologic malformations, especially in adults. We report a case of cystic duplication located near the pancreas revealed by unusual symptoms and associated with marked elevation of serum CA 19-9 levels. Although the physiopathology of the expression of CA 19-9 in duplications is unclear, this feature has been recently reported in adults and could be of interest in the diagnosis and management of intestinal duplications.