Figure 1

Complete and incomplete pancreas divisum with diverticulum of the second part of the duodenum. The magnetic resonance cholangiopancreatography scan shows the main pancreatic duct (arrowheads) terminates above the distal common bile duct (curved arrow) owing to the presence of pancreas divisum. The multiple small pseudocysts adjacent to Wirsung's duct are markers of recurrent pancreatitis (arrows). Signal irregularity indicated by the asterisk is due to a mixture of fluid and air present inside the duodenal diverticulum (the duodenal 'C' was cancelled by the superparamagnetic contrast medium introduced orally to avoid the overlapping of intestinal fluids with the common bile duct and Wirsung's duct).