Fig. 1

Bronchoscopic images. a Left main bronchus. The anastomosis of the previous transplantation (black arrowheads) and a white foreign body distal to the anastomosis are shown. b The foreign body was removed by bronchoscopic biopsy forceps. c The left main bronchus after removal of the foreign body. The granulation tissue around the fistula is indicated as yellow dotted line and the bronchial anastomosis is indicated as black arrowheads