[UV-fluorescence-bronchoscopy]

In UV fluorescence bronchoscopy the patient inhales 5 ml of a 5% aqueous solution of fluorescein by compressed air spray, together with a beta2-stimulator, 10-15 min before the bronchoscopy. After the dyestuff which has collected in the secretion has been coughed up or drawn off, only carcinomata, nonciliated metaplastic forms of the mucous membrane, macroscopically non-visible tumour infiltrations into the mucous membrane, and lymphangiosis carcinomatosa remain stained. Under UV illumination, these areas can be visualized for location of points to be examined by biopsy. Interested readers are called upon to form themselves into a study group.