[The role of biopsy as diagnostic measure in rare nonspecific lung diseases (author's transl)].

In this paper the diagnostic value of biopsy as diagnostic measure in rare nonspecific lung diseases is analysed. The rare nonspecific are diseases are heterogen in the view of etiology, pathogenesis and clinical, röntgenological nd morphological symptoms. Most of these diseases out of the material of our institute showed disseminated changes in the lungs. The role of the biopsy in the diagnostic of these group of diseases is demonstrated. In an another group of rare unspecific lung diseases the value of biopsy is only small and diagnosis can be secured by clinical-röntgenological examinations.