To explore surgical experiences of huge choledochal cyst in children.

From August 2005 to May 2012, ten children whose main clinical manifestation were abdominal masses and treated surgically were chosen as the research object in this department. Out of tem, four were boys and six were girls. They were diagnosed by magnetic resonance cholangiopancreatography and the diameter of cysts were larger than 10 cm. All children were performed with reconstruction of the extrahepatic biliary system, total resection of common bile duct cyst and Roux-en-Y choledochojejunostomy. All children were followed up postoperatively, and their growth and development status, and signs including jaundice, fever, and so on, were observed. The complications such as reflux cholangitis, pancreatic disease, malnutrition were recorded. The study protocol was supported by the Ethical Review Board of Investigation in Human Being of this hospital. Informed consent was obtained from guardians of children.

Ten children were cured and discharged. Out of them, 3 cases were followed up for 2 years, 4 cases for 1.5 years, 3 cases for 8 months, and 1 case for 3 months. Reflux cholangitis, pancreatic disease, malnutrition and other complications were not found.

Total resection of common bile duct cyst and Roux-en-Y choledochojejunostomy is effective to treat children with huge choledochal cyst.