Choledochal cyst.
D000368:Aged; D001652:Bile Ducts / Q000002:abnormalities / Q000601:surgery; D002648:Child; D003137:Common Bile Duct Diseases / Q000151:congenital / Q000601:surgery; D003560:Cysts / Q000151:congenital / Q000601:surgery; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D010183:Pancreatic Ducts / Q000002:abnormalities / Q000601:surgery