[Significance of cytohistologic examination of pleural biopsy samples obtained through diagnostic thoracoscopy for exudative pleurisy of obscure etiology].

Significance of results of cytologic (CE) and histologic (HE) examinations of the biopsy material, received during diagnostical thoracoscopy for the exudative pleurisy (EP) of nonestablished etiology was studied. There were 69 observations of EP analyzed. Following diagnosis was established: nonspecific, tuberculous, metastatic pleurisy and in pleural mesothelioma. The values of CE and HE characteristics were presented. The complex general value of cytohistologic diagnosis had constituted 94%. Causes of diagnostic mistakes occurrence were considered.