[The use of endoscopic techniques in the diagnostics of the lung cancer]

In modern pulmonology there are new sufficient and noninvasive diagnostic method for staging of lung cancer. Bronchoscopy as a diagnostic and therapeutic tool was introduced to medicine at the end of XIX and early XX century. Recently a new image technique such as endobronchial ultrasonography has been developed. This method has an effect on the qualitative changes in bronchoscopic investigation.