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Figures
Figure 1: Chest radiograph (anteroposterior) taken several hours following the trauma, showing an apparent widened mediastinum with loss of the aortic knob contour (arrows). Deviation of the esophagus could not be excluded because a nonopaque orogastric tube had been inserted before transfer to the trauma centre.
Figure 2: Normal chest radiograph (posteroanterior) with patient in upright position, taken several months before the trauma.
Figure 3: Computed tomography scan, showing normal mediastinum with no evidence of aortic filling defects or pseudoaneurysm. A large thymus (asterisks) consistent with age is evident. A mediastinal fat density (arrow) and pleural effusion (double arrow) are present.