Figure 2From: Successful management of trachea stenosis with massive substernal goiter via thacheobronchial stent The bronchoscopic examination through nose showed that the trachea 20 cm from the nostril was depressed (A), and the site 25 cm from the nostril was narrowed seriously (B) so that the bronchoscope of outer diameter (OD) 2.8 mm could barely go through with some resistance. The tunica mucosa bronchiorum was smooth under bronchoscopy.Back to article page