The authors describe a case of a patient suffering from Wegener's disease with endobronchial manifestations which progressively developed tracheal stenosis which was not accessible to the usual immunodepressive therapy. Repeated endobronchial dilatation using a balloon introduced via supple fibroscope was carried out with success. The balloon dilatation seems a useful alternative approach to other therapies such as surgery. It is a non-aggressive technique which is easily performed and has no complications.