Additional file 1 of Case report: silicosis complicated by bronchial stones and tracheoesophageal fistula

Additional file 1: Fig. 1 A. September 13 chest CT scan without contrast shows a broncholith obstructing the right main bronchus, as indicated by the arrow. B. After partial stone removal, the September 28th CT scan revealed improved bronchial patency compared to previous scans, with the arrow indicating the bronchopleural fistula opening. C. After the second stone removal, the October 10th CT showed bilateral bronchial patency was observed. D. November 8th chest CT was performed. Figure 2 September 13th esophagography revealed contrast extravasation at the site indicated by the arrow. Figure 3 A. On September 22nd, bronchoscopy revealed endoscopic visualization of a nasogastric tube passing through the tracheoesophageal fistula at the site indicated by the arrow. B. Stone extraction was performed via bronchoscopy at the site indicated by the arrow. Figure 4 The stone extracted endoscopically could not be processed into a specimen due to its hard consistency. Figure 5 A. On September 28th, a stone measuring approximately 2 cm in diameter was extracted during the second bronchoscopic procedure. B. On September 25th, esophagogastroscopy revealed no esophageal strictures, with a 0.6 cm fistula observed on the left anterior wall at 30 cm from the incisors, accompanied by purulent drainage