[Familial interstitial calcinosis (a 20-year follow-up study)].

We report on observations in the progress of Calcinosis Interstitialis Universalis in three generations of one family. Some members could be followed for more than 20 years. Each member of the family was examined and the course of the disease described. Part of the family underwent functional analysis by a specialist in internal medicine. Our conclusion is, that, at least, in this family, the disease is in all probability, a genetically fixed, dominant hereditary disease.