[Immunohistology of interstitial lung processes]

Immunohistologic investigations were performed in 124 lung tissue test of diffuse pulmonary processes obtained by transthoracic needle biopsy. In 40.3% the unselected material showed a positive immunofluorescence. It appeared in all groups formed by light microscopy. In the exogenic allergic alveolitis with 36.8% it was falling short of the expectations. The investigations allow of the conclusion that the immunohistology in diffuse pulmonary processes shows clearly applicable results neither for the diagnostics nor for the therapy and also not for the prognosis.