I have not embarked on the foreword to this scientific monograph by Armando and Gior- gio ROSSI in the expectation that it will be an easy task, because these two authors are the last remaining members of a family that has left its mark in the field of radiology in our country: therefore, the writer's enthusiasm and detachment could be jeopardized by mem- ories of his own teachers and elders and the respect he still feels towards them. The line stretches...