Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains mildly enlarged . The aortic knob is calcified . Mediastinal and hilar contours are otherwise unremarkable . The pulmonary vasculature is normal . Previously noted opacities within the right lung have resolved . The lungs are hyperinflated . No focal consolidation , pleural effusion or pneumothorax is present . There are multilevel degenerative changes noted in the imaged thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .