[Is the Gardner syndrome a separate disease? (author's transl)].

A family, the members of which suffer from "Gardner's syndrome" is reported. In this family, and also in another family which is being treated in our clinic with a diagnosis of "familial polyposis of the large intestine", bronchiectasis appears with a frequency more than can be attributed to chance. Our observations suggest the following conclusions: 1. Gardner's syndrome and familial polyposis of the large intestine are diseases which cannot be strictly separated from each other, but the isolated intestinal polyposis is a monosymptomatic form of Gardner's syndrome. 2. Bronchiectasis can be considered a further symptom of this disease caused by a pleiotropic effect of a gene.