Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mild to moderately enlarged , unchanged . Mediastinal and hilar contours are similar . Pulmonary vasculature is not engorged . Patchy and streaky opacities in the lung bases likely reflect areas of atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . Diffuse idiopathic skeletal hyperostosis is re - demonstrated .
    OUTPUT:
    
Mild bibasilar atelectasis . No focal consolidation to suggest pneumonia .