FIELD: medicine, thoracic surgery, roentgenology. SUBSTANCE: two summarized roentgenograms are carried out before and after drainage of pleural cavity. Then they should be compared and at the presence of positively pathognomonic symptom of complete pulmonary collapse at removed tense pneumothorax one should detect the complete rupture of the major bronchus from the side of pneumothorax. EFFECT: higher accuracy of diagnostics. 4 dwg, 2 ex
