Evolvement of diagnosis and treatment in congenital biliary dilatation *PENG Shu-you, WANG Xu-an. *Department of Surgery, the Second Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou310009, China
Corresponding author: WANG Xu-an, E-mail: doctor.wxa@163.com
Abstract    Congenital biliary dilatation (CBD) is a group of rare conditions, commonly associated with the presence of pancreaticobiliary maljunction. The main clinical symptoms are jaundice, abdominal pain and abdominal mass with complications of cholangitis, acute pancreatitis and canceration. Ultrasonic diagnosis is regarded as the first examination. Magnetic resonance cholangiopancreatography & CT scan is the most commonly used preoperative imaging study to assess cyst anatomy and to classify the disease according to the standard Todani classification currently. Excision of the dilated bile duct with Roux-en-Y hepaticojejunostomy is strongly recommended treatment. But the optimal treatment of intrahepatic bile duct dilatations remains controversial.