Figure 4. Endoscopic retrograde cholangiopancreatogram in a 12-year-old girl with complete pancreas divisum. Injection of the duct of Wirsung (top) revealed a prominent and foreshortened duct in the pancreatic head and uncinate process. Injection of the accessory papilla (bottom) revealed a prominent duct of Santorini with associated ectasia of side branches and noncalcified filling defects. This patient later was confirmed to have hereditary pancreatitis.