Rare genetic diseases can sometimes be recognized through facial features, such as characteristically shaped brows, nose or cheeks. Researchers at the University of Bonn have now trained software that uses portrait photos to better diagnose such diseases. The improved version „GestaltMatcher“ can now also detect diseases that are not yet known to it. It also manages to diagnose known diseases with very small numbers of patients. The study has now been published in the journal „Nature Genetics“.