Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size remains moderately enlarged but unchanged . The aorta is tortuous and diffusely calcified . The hilar contours are normal . The pulmonary vasculature is not engorged . Calcified granulomas within the lungs bilaterally are unchanged . Patchy bibasilar airspace opacities likely reflect atelectasis . No focal consolidation , pleural effusion or pneumothorax is seen . Remote right - sided rib fractures are again noted .
    OUTPUT:
    
Mild bibasilar atelectasis .