What is the type of pancreas divisum in this case?
Type 3. There are 3 types of pancreas divisum. 1. classic: no connection at all, 70% cases 2. absent ventral duct: minor papilla drains all of the pancreas while major papilla drains common bile duct, ~20-25% 3. functional: a filamentous or inadequate connection between dorsal and ventral ducts is found, rare, 5-6%
Large dorsal pancreatic duct measuring 3 mm in diameter and opening into minor papilla along the medial border of second part of the duodenum.
A smaller ventral duct measuring 1.5 mm in the pancreatic head is seen which joins distal common bile duct, to open into major papilla along the second part of the duodenum . A small branch from ventral duct also joins dorsal duct.
CBD is normal and measures 4 mm in diameter. Gallbladder and cystic duct are normal. Intrahepatic biliary radicles are normal. Pancreas appears normal. No intraductal filling defects or cystic lesions are noted.
These findings favour a diagnosis of pancreas divisum.