[Partial rupture of biliary cyst of large dimensions. Clinical description and ultrasonic diagnosis]

The clinical case of an elderly patient hospitalised for acute abdomen type syndrome is reported. Investigation, particularly echography, pointed to a diagnosis of partially ruptured giant biliary cyst of the liver. The clinical pictures and the unusual features of this rare condition are discussed. Differential diagnosis with respect to echinococcosis and polycystic liver is examined.