[Transbronchial biopsy of the lung and bronchoalveolar lavage in the diagnosis of sarcoidosis].

The outcomes of a complex study of sarcoidosis and other interstitial pulmonary diseases in 1325 patients are presented. An important role of intrapulmonary biopsy and bronchoalveolar lavage methods in defining the diagnosis and the process activity, especially when they are used in combination, is demonstrated. Complications in the form of bleedings and pneumothorax were registered in a limited number of the patients, mainly as a result of rigid bronchoscope procedures. Differential and diagnostic signs of sarcoidosis and some other disseminations in the lung, obtained by means of biopsy, bronchoalveolar lavage and clinical data studies, are given.