PMC5760869_01
Chest radiography on admission showing right-sided pleural effusion
LI-35-50-g001.jpg
PMC5760869_01_LI-35-50-g001.jpg
F1
Chest radiography showed right-sided pleural effusion [Figure 1], and computed tomography of the chest showed bilateral pleural effusion right greater than left, with atelectasis of RLL [Figure 2].
Computed tomography of chest on admission before thoracentesis confirming radiographic findings of right-sided pleural effusion
LI-35-50-g002.jpg
PMC5760869_01_LI-35-50-g002.jpg
F2
Chest radiography showed right-sided pleural effusion [Figure 1], and computed tomography of the chest showed bilateral pleural effusion right greater than left, with atelectasis of RLL [Figure 2].
Chest radiography postpigtail catheter drainage showing incomplete expansion of right lung
LI-35-50-g003.jpg
PMC5760869_01_LI-35-50-g003.jpg
F3
Postpleural fluid drainage and repeated chest imaging showed right-sided unexpandable lung with pneumothorax ex vacuo and possible endobronchial lesion in the right middle lobe (RML) bronchus [Figures 3 and 4].
Computed tomography of the chest postpigtail catheter drainage confirming right-sided unexpandable lung (red arrow) with possible endobronchial lesion in the right middle lobe bronchus (blue arrow)
LI-35-50-g004.jpg
PMC5760869_01_LI-35-50-g004.jpg
F4
Postpleural fluid drainage and repeated chest imaging showed right-sided unexpandable lung with pneumothorax ex vacuo and possible endobronchial lesion in the right middle lobe (RML) bronchus [Figures 3 and 4].
Right lower lobe lung biopsy with Verhoeff's elastic staining showing plexus of elastic fibers (blue arrow) parallel to basement membrane
LI-35-50-g005.jpg
PMC5760869_01_LI-35-50-g005.jpg
F5
RLL biopsy with Verhoeff's elastic staining showed plexus of elastic fibers parallel to basement membrane [Figure 5].
Immunoperoxidase staining demonstrating the presence of elastic tissue as fibrillar amphophilic material centered around capillary vessels consistent with the diagnosis of bronchial elastosis (elastic tissue shown by blue arrow)
LI-35-50-g006.jpg
PMC5760869_01_LI-35-50-g006.jpg
F6
Immunoperoxidase staining on RLL showed the presence of elastic tissue as fibrillar amphophilic material which was centered around blood capillary vessels consistent with the diagnosis of bronchial elastosis [Figure 6].