Case 4.1

51-year-old man with possible cholangiocarcinoma MIP image from 3D FRFSE MRCP (Figure 4.1.1) demonstrates that the main pancreatic duct drains into the duodenum at the minor papilla, separate from the common bile duct. Pancreas divisum Pancreas divisum is the most common pancreatic developmental anomaly, with an estimated prevalence of 4% to 15%. It occurs when the ducts of the dorsal and ventral pancreatic buds fail to fuse. This results in the main pancreatic duct draining into the duodenum at the minor papilla via the duct of Santorini, separate from the common bile duct, which drains into the major papilla. (With normal development, the ventral duct of Wirsung fuses with the main pancreatic duct of the body and tail and drains into the major papilla with the common bile duct.)...