PMC4731900_01
A chest computed tomography scan showing tracheal stenosis at thoracic inlet before treatment in Case 1
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Fig1
A chest computed tomography (CT; Fig. 1) revealed tracheal stenosis at the thoracic inlet, patchy, nodule-like and streaking lesions with uneven density in both lobes of the lung, and normal lymph node sat mediastinum and lung hilus.
Photographs showing bronchus stenosis before and after treatment in Case 1. a Photographs showing bronchus lumen before treatment; b Photographs showing bronchus lumen immediately after treatment; c Photographs showing bronchus lumen 50 days after treatment
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Fig2
The bronchial lumen expanded only slightly following the procedure (Fig. 2a, b). A repeat bronchoscopy showed that the ring-like scar stenosis was dilated, allowing the passage of bronchoscopy (BF IT-260, Olympus Corporation, Tokyo, Japan) (Fig. 2c).
PMC4731900_02
A chest computed tomography scan showing tracheal stenosis and right bronchial stenosis of the patient in Case 2
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Fig3
Lower tracheal stenosis, right bronchus stenosis and right pleural thickening were also observed (Fig. 3).
Photographs showing tracheal and bronchus stenosis in Case 2. a Photographs showing the middle and lower tracheal stenosis, and right main bronchus stenosis with caseous necrotic material attached to the nozzle exit before the treatment; b Photographs showing the narrowed trachea and right main bronchus immediately after the first treatment; c Photographs showing the middle and lower tracheal, and right main bronchus after the fifth treatment
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Fig4
For the right main bronchus stenosis, BC-260 bronchoscope could not even pass (Fig. 4b). The orifice of the right main bronchus was still narrowed, could not permit the passage of the bronchoscopy (BC-260), but the caseous necrotic materials disappeared (Fig. 4c).