Fig. 2
From: Successful treatment of bilateral empyema with bilateral fistulae using free intercostal muscle flap
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40792-021-01140-8/MediaObjects/40792_2021_1140_Fig2_HTML.jpg)
a CT after the first operation revealed a bronchopleural fistula in the right pleural cavity. The right B10c was thought to be the responsible bronchus (yellow arrow). b Endobronchial Watanabe spigots were inserted into the right B10b and B10c bronchi. c The right S10 fistula was superimposed and closed using a pedicled intercostal muscle flap (white arrow). d CT after the second operation showed that both sides of the lung expanded without residual pleural space