[Alveolitis and pulmonary fibrosis in chronic diverticulitis and ulcerative colitis].

Associated reactions of the connective tissue of the lungs are by no means rare in several extrapulmonary disorders, for example, with the "so-called" collagenoses. They are less frequent in chronic inflammatory intestinal diseases. The mechanism of this pulmonary reaction is largely unclarified. The situation is complicated further by the fact that a drug side reaction may compete with the underlying disease. The problem of a change in the connective lung tissue within the framework of a chronic inflammatory intestinal disease or as a result of drug therapy of that disease, is described and demonstrated via the cases of two patients.