Digital Surgical Diagnosis and Management of Biliary Dilatation

Biliary dilatation (BD), also known as bile duct cyst, is a rare primary biliary disease. It can be congenital, and can also occur in adulthood, mainly manifesting as intrahepatic and extrahepatic bile duct single or multiple local dilatations. The typical clinical manifestations include jaundice, abdominal pain, and abdominal mass, often accompanied by pancreatitis, cholangitis, and carcinogenesis. The canceration rate is 20 to 30 times that of the general population. Secondary biliary dilatation caused by stones, strictures, or tumors of the bile duct does not belong to the category of BD.