[Morphogenesis of emphysema in occupational lung diseases (clinico-anatomical comparisons)].

The distinction of pneumoconiosis and occupational (dust) bronchites in the clinic of occupational lung pathology required morphological justification of such divisions. Examinations of 37 fatal cases with dust pathology of the lungs showed that in two thirds of the cases predominantly obstructive bronchitis forms of emphysema and compensatory perinodular forms of emphysema in silicosis could be diagnosed morphologically. A less marked diffuse character of emphysema in focal forms of pneumoconiosis is conducive to the inclusion of compensatory mechanisms preventing the development of pneumonial and cardial insufficiency.