[Diagnostic problems in a patient with progressive sclerodermia (author's transl)]

3 characteristic problems of progressive sclerodermia are discussed on the basis of one case: 1. The differential diagnosis of stenosis of the esophagus due either to the disease or to carcinoma, 2. in the presence of a round focus in a lung, the question of its connection with pulmonary fibrosis or bronchial carcinoma, 3. in rapidly increasing interstitial marking the distinction between increasing fibrosis of interstitial superimposed edema.