[Cystic lymphangioma of the neck in childhood (author's transl)].

Over a period of seventeen years (1960--78) we have collected twenty two cases of cystic lymphangioma of the neck out of ten thousand patients admitted to our Department. Of these cystic lymphangioma cases, thirty three per cent occurred in the neo-natal period. All these tumours were operated upon with only two fatalities. In only one case the operation was done in two stages due to a huge mediastinal prolongation. We discuss here the embryology, the clinical evolution, the pathology, the diagnosis and the treatment of this type of cystic lymphangioma.