[Fibrosing alveolitis--a contribution to the ultrastructure and pathogenesis of interstitial pulmonary diseases (author's transl)].

Considering the functional anatomy of the lung parenchyma the pathomorphological response pattern of the alveolus has been described. Hereby, the fibrosing alveolitis is conceived as an uniform concept of a disease, to which many different aetiological factors are associated. The ultrastructural pathology of early changes in fibrosing alveolitis has been described in the bleomycin lung as an example, which pathogenesis (as a chemically induced pulmonary damage) has a character of a model for the process of fibrosing alveolitis.