[Sarcoidosis of the parietal pleura--a contribution to the pathogenesis of intrathoracic sarcoidosis].

Sarcoidosis is a frequent systemic disease with various appearances and unknown etiology. The diagnosis of intrathoracical sarcoidosis can be made with considerable accuracy by means of X-rays and endoscopic and bioptic methods. In the international literature there exist very great differences concerning the pleural involvement in sarcoidosis. Potential causes and hypotheses of the modality of the involvement of the parietal pleura with noncaseating epitheloid granulomas are discussed.