Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . Note is made of a mildly tortuous aorta , otherwise the hilar and mediastinal contours are normal . There is no evidence of aortic dilatation . The lungs are clear without evidence of focal consolidations concerning for infection . There is no pleural effusion or pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
No evidence of aortic dilatation or mediastinal widening , however , a CTA of the chest would be the test of choice to evaluate for an aortic dissection .