[Isolated congenital stenoses of the extrahepatic bile ducts].

Congenital isolated strictures of the extrahepatic bile ducts are very rare, with only eleven cases reported until 1990. We report two infants (3 and 2 months old, respectively) one of them with a choledocal stenosis and the other with a congenital stricture of the common hepatic duct and spontaneous perforation of the biliary tract. Dilatation of the distal stricture with insertion of T-tube was performed during surgical act. We get success with this technique in both cases.