Pancreas and biliary system: imaging of developmental anomalies and diseases unique to children.

The focus of this article is on the development of the pancreas and biliary system, with a review of the most common congenital anomalies affecting the pancreas and biliary tree, including pancreas divisum, annular pancreas, congenital shortening of the pancreas, and choledochal cysts. Additionally, biliary atresia and pancreatoblastoma--both diseases of the pancreas and biliary system that almost exclusively affect children--are considered, with a discussion regarding the clinical presentation and imaging appearances of these disorders.