Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is somewhat widened appearance of the mediastinum , which may be due to tortuous thoracic aorta and enlargement of the right hilum . The lung volumes are low , carotid in the pulmonary vasculature . Otherwise , the lungs are clear there is no evidence of pleural effusion or pneumothorax . Gaseous distension of the multiple bowel are seen in the abdomen .
    OUTPUT:
    
Mild widened appearance of the mediastinum , which may be secondary to low lung volumes , increased pulmonary pressure . However , in the absence of priors and given history of recent trauma , acute aortic injury may be suggested .