In simple words: A choledochal cyst is a birth defect where the bile duct, which carries bile from the liver to the gallbladder and small intestine, is abnormally widened.

A choledochal cyst is a congenital dilation of the common bile duct.

Example 1: A newborn infant presents with jaundice and abdominal distension. Imaging reveals a cystic dilation of the common bile duct, consistent with a choledochal cyst., A 2-year-old child experiences recurrent episodes of abdominal pain, fever, and jaundice.A choledochal cyst is diagnosed via ultrasound., An adult undergoes an abdominal ultrasound for unrelated reasons, and a choledochal cyst is incidentally discovered.

Documentation should include imaging findings (e.g., ultrasound, CT, MRI) confirming the presence of a choledochal cyst, as well as any associated symptoms or complications.

** Choledochal cysts are classified into several types based on their location and morphology.Treatment typically involves surgical excision of the cyst.