Figure Legends
Figure 1. Foreign body in the main bronchus detected using preoperative chest CT .
(A-1) A minimum intensity projection (MinIP) image shows an abnormal density shadow on the right side of the trachea above the tracheal protrusion, a foreign body in the trachea, and emphysema in the upper lobe of the right lung. (A-2) A three-dimensional image shows that the local bronchus is interrupted. (B-1) An MinIP image shows a density shadow on the right trachea, a foreign body in the trachea, and emphysema in the right lung. (B-2) A three-dimensional image shows that the right bronchus is interrupted. (C-1) An MinIP image shows a density shadow on the left trachea, a foreign body in the trachea, and emphysema in the left lung. (C-2) A three-dimensional image shows that the right bronchus is interrupted.