Fig. 1

Typical chest CT images of IPF-LC before and after surgery. (a) The preoperative chest CT demonstrated scattered reticular and honeycomb-like shadows in the subpleural areas of both lower lungs, and a solid nodule in the posterior basal segment of the right lower lung. (b) The postoperative chest CT indicated that the reticular and honeycomb shadows in the left lower lung were more severe than before, and scattered ground-glass opacities could be observed in both lungs. In the outer basal segment of the right lower lung, there were local reticular or streaky shadows and encapsulated pleural effusion