[Congenital dilatations and stenoses of the bile ducts in children (author's transl)].

The congenital choledochus cyst is an extremely rare disease pattern. The author presents two own cases of boys aged 4 1/2 years in whom the disease was manifested as a fusiform dilatation of the cholodochus and of the other bile ducts on the one hand, and by a cyst in the second case. Both cases were characterised by an additional annular stenosis of the cholodochus immediately before the junction of the pancreatic duct. The article discusses the most essential criteria in respect of clinic, diagnosis and therapy, as well as the etiological aspects.