Choledochus cyst.
D015529:Choledochal Cyst; D003135:Common Bile Duct; D003560:Cysts; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases
COMMON BILE DUCT; CYSTS; INFANT, NEWBORN, DISEASES