[Congenital dilatation of the extrahepatic biliary tract]. / La dilatazione congenita della via biliare extraepatica.

Congenital dilatations of the extrahepatic bile duct are examined with special regard for the operating techniques proposed for their correction. After pointing out that the terminology adopted in the literature does not reflect the real morphology of the malformation, and lends itself to erroneous interpretations, a modification is proposed. The basis for the paper was provided by a case of complex malformation of the extrahepatic bile duct (dilatation of the whole duct, with a dividing wall along nearly its whole length) observed in a girl of 15. The case was successfully treated with choledocho-cysto-jejunostomy.