The frontal chest radiograph shows the patient on a trauma board with no focal pulmonary process, pneumothorax, or displaced fractures. The cardiac silhouette is unremarkable. There is mild widening of the superior mediastinum, which may be due to normal vascular structures or could represent underlying vascular injury in the context of trauma. Further evaluation with repeat PA and lateral chest radiographs or CT is recommended as clinically indicated.
Superior mediastinal mass (Uncertain)