The article describes a newly introduced technique in the Czech Republic and our first experiences with it. The evaluation of the changes in bronchial wall or in the outside in the vicinity of the airways can only be suspected from indirect signs. Many pathologies however include parabronchial structures and are not diagnosed by classic bronchoscopy at all. EBUS (endobronchial ultrasound) is the method, which is able to remove this shortcoming and enable a new picture of the structures adjacent to bronchial wall. In the viewof patient’s fate the most important fact is the ability of EBUS to correctly diagnose lymphatic node involvement in clinical staging of bronchogenic carcinoma.The indication and methodology is discussed.

        Key words: endobronchial ultrasound, transbronchial biopsy, bronchogenic carcinoma