[Cell and fluid permeability of the alveolar wall in sarcoidosis].

The value of BAL in three groups of diseases (sarcoidosis, lung fibrosis, inflammatory diseases of the bronchi) compared with a control group is described. The cellular components and total protein and glycoprotein as well as electrolyts and angiotension-converting enzyme were examined. In patients with sarcoidosis a higher retention of sodium ions was stated. ACE in BAL was without any hint to the activity of the disease. But for glycoproteins a higher permeability was proved. In several fractions of the BAL fluid were differences according to all examined parameters.