Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is no . Mediastinal and hilar contours are unchanged with atherosclerotic calcifications noted at the aortic knob . Pulmonary vasculature is not engorged . Lungs remain hyperinflated with emphysematous changes again visualized . Interstitial and streaky opacities are most pronounced at the lung bases with bronchial wall thickening , more pronounced in the left lung base , suggestive of chronic airway inflammation and potentially infection or aspiration . No pleural effusion , focal consolidation or pneumothorax is present . Hazy ovoid opacity within the right mid lung field seen likely corresponds to the previously radiofrequency ablated lesion in the right lower lobe .
    OUTPUT:
    
Emphysema with persistent bibasilar opacities , more pronounced in the left lung base , suggestive of chronic airway inflammation and potentially infection or aspiration , not substantially changed from the previous radiograph .