[Congenital cysts of the liver in echography]

The authors present 150 cases of congenital biliary cystic pathologies of the liver: solitary congenital cyst (98 cases), multiple congenital cysts (40 cases), hepatic polycystosis (8 cases), and Caroli's disease (4 cases). The general characteristics of these congenital liver affections are reviewed, including discussion of their frequency, classification and potential for evolution. The problems raised by this type of pathology and the benefits of ultrasonography are emphasized.