Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal and hilar contours are unremarkable . Dense vascular calcifications within the aortic arch are without evidence of dissection or aneurysm . The lungs are hyperinflated , but there is no relative lucency of the upper lobe parenchyma to suggest large bullae due to underlying emphysema . Surgical clips project over the soft tissues of the right chest wall . No pleural effusion or pneumothorax present .
    OUTPUT:
    
Clear lungs . If continued concern for mass or pulmonary hemorrhage , could be further assessed with CT . Possible underlying emphysema .