PMC5140868_01
Chest computed tomography (CT) of this patient. A: A coronal view of the chest mediastinal window shows diffuse calcified lesions throughout the cartilaginous regions of the trachea and bilateral bronchi. Noncalcified endobronchial airway polyps are also seen on the left side of the trachea and the upper side of the left main bronchus (white arrows). B: A transverse view of the chest mediastinal window demonstrates right middle lobe atelectasis and an endobronchial airway polyp with small calcified lesions (white arrow) in the right middle lobe bronchus.
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Chest computed tomography (CT) revealed diffuse calcified lesions throughout the cartilaginous regions of the trachea and bronchi, right middle atelectasis, and airway polyps (4-9 mm) in the left trachea and the left main bronchus (Fig. 1).
Endobronchial findings of this patient. There are no remarkable abnormal findings in the trachea (A) and carina (B), however, bronchoscopy showed a diffuse edematous mucosa with polyposis in the trachea (A), carina (B), right middle bronchus (C) and left main bronchus (D).
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The bronchoscopic findings showed diffuse edematous mucosal lesions with polyposis on the left side of the trachea, the right middle bronchus and the left main bronchus (Fig. 2).
Histopathological findings of the airway polyp. A: An endobronchial polyp lesion obtained from the left main bronchus demonstrated submucosal calcification, ossification and cartilage formation surrounded by chronic airway inflammatory cells. B: An enlarged view shows the polyp lesion to consist of submucosal ossification and inflammatory cells.
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TO was pathologically confirmed in the resected submucosal cartilaginous tissue, and mature ossifications were also observed in the tissue (Fig. 3).