Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged but unchanged . Mediastinal contour is similar , with diffuse atherosclerotic calcifications seen throughout the aorta . Hilar contours are unchanged , with mild vascular indistinctness suggestive of mild pulmonary vascular congestion . Patchy opacities in the lung bases may reflect areas of atelectasis but infection is not excluded . The lungs are hyperinflated . No pleural effusion or pneumothorax is identified . Old right - sided rib fractures are again seen . Bilateral humeral prostheses are incompletely imaged .
    OUTPUT:
    
Mild pulmonary vascular congestion and bibasilar patchy opacities , possibly atelectasis though infection can not be excluded .