Choledochal Cyst

Choledochal cysts (CDCs) are a rare condition characterized by abnormal dilation of the biliary tree. They are most diagnosed during infancy or childhood. There does not seem to be a single cause that explains the various types of CDCs. Children may present with the classic triad of abdominal pain, jaundice, and an abdominal mass. While abdominal US is the preferred initial diagnostic tool, magnetic resonance cholangiopancreatography and endoscopic retrograde cholangiopancreatography provide more accurate results. Common complications include stone formation and malignant transformation. CDCs generally have a good prognosis after surgical resection. However, patients require long-term surveillance.