Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is moderately enlarged but unchanged . The aorta is diffusely calcified . The mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Minimal streaky opacities in the lung bases likely reflect areas of atelectasis . Scarring is re - demonstrated in the right apex . No pleural effusion or pneumothorax is present . There are moderate multilevel degenerative changes throughout the thoracic spine .
    OUTPUT:
    
Mild bibasilar atelectasis without focal consolidation .