It is endoscopy of airways. It is useful in diagnosis of lung cancer or foreign body lungs.
Bronchoscopy inspection of the interior of the tracheobronchial tree through a bronchoscope, usually a fiberoptic one passed through the nose.
This is used as a diagnostic aid and for therapeutic purposes. As an aid to diagnosis the bronchoscope allows for visualization of the bronchial mucosa and removal of tissue for biopsy. Bronchial washings and collection of secretions are done at the time of bronchoscopy to obtain samples for culture and cytological examination. Therapeutically, the bronchoscope permits removal of foreign bodies that have been aspirated into the bronchial tree and also may be used to facilitate suctioning of the lower airway. The latter technique is done at the bedside and anesthesia is not considered necessary.