[Common bile duct cyst of type 1].

A case of common bile duct cyst, type 1, is presented. On account of the risk of development of cancer, excision of the cyst and the gall bladder is recommended. The duct system is then reestablished by means of hepato-jejunostomy. Scandinavian gastroenterologists should bear this condition im mind in patients of Asiatic origin with signs of biliary disease.