Antenatal sonographic diagnosis of choledochal cyst: Case report and imaging review.

In this report, we present the antenatal two- and three-dimensional sonographic findings from a fetus with choledochal cyst as well as confirmatory postnatal MRI. A delayed diagnosis of choledochal cyst is common, leading to significant morbidity and mortality. Visualizing bile ducts entering a right upper quadrant cyst is pathognomonic, and early diagnosis can facilitate definitive treatment with Roux-en-Y hepaticojejunostomy.