[Desquamative interstitial pneumonia. Clinical, optic, ultrastructural, histo-immunoligical and enzymatic study of a case].

The desquamative intersitial pneumonia is a rare, sometimes curable from of diffuse interstitial fibrosis. A clinical, optical and ultrastructural, immunochemical and histo-enzymologic study of one case proved the macrophage nature of the intra-alveolar cells and suggested in the histo-genesis an immunological mechanism depending on lymphocytes.