Figure Legends:
Figure 1: Bronchoscopic view of a polydioxanone (PDO) stent in
the trachea.
Figure 2: Bronchoscopic aspect of a tracheal PDO stent with
mild granulation tissue (fifth consecutive stent).
Figure 3: Bonchoscopic image of a tracheal PDO stent causing
severe granulation tissue in its the upper end.