Fig. 1From: Treatment of multiple-level tracheobronchial stenosis secondary to endobronchial tuberculosis using bronchoscopic balloon dilatation with topical mitomycin-CFV loop pre- and post-intervention. a FV loop showing flattening of inspiratory and expiratory limbs indicating fixed upper airway obstruction. b FV loop at 36 weeks following intervention showed improvement of both the inspiratory and expiratory limbsBack to article page