Chest radiograph demonstrates low lung volumes with hazy opacification within the left midlung, suggestive of contusion. There are fractures of the left lateral sixth and seventh ribs with underlying pleural thickening, which may indicate hemorrhage. Adjacent subcutaneous air is noted. No pneumothorax is definitively identified. Widening of the superior mediastinum is observed.
Acute rib fracture (Present) Superior mediastinal mass (Uncertain) Subcutaneous Emphysema (Present)