Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . Mediastinal contours are stable . Flattening of the diaphragm is suggestive of COPD . Bibasilar opacities , larger on the left , may represent atelectasis , but infection is not excluded . No large pleural effusion . No pneumothorax .
    OUTPUT:
    
Left greater than right bibasilar opacities consistent with atelectasis or infection . Please correlate with clinical symptoms . Right cervical rib