Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Mediastinal contour is unchanged , with dense calcification of the thoracic aorta re - demonstrated . Lungs remain hyperinflated with centrilobular emphysema re - demonstrated . Increasing diffuse opacification is seen involving the right lung , as well as the peripheral aspect of the left upper lobe , findings concerning for multifocal infection . Streaky opacity within the left lung base could reflect atelectasis or additional site of infection . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Increasing opacification within the right lung diffusely as well as within the peripheral aspect of the left upper lobe concerning for multifocal infection . Left basilar patchy opacity could also reflect another site of infection versus atelectasis .