Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . Bibasilar opacities are identified which project over the spine . Findings may reflect atelectasis , though pneumonia can not be excluded . There is no pneumothorax . No pulmonary edema is evident . Right apical and right lateral chest wall pleural thickening and scarring noted , unchanged compated with ___ chest CTA . No definite pleural effusion is visualized . Mediastinal and hilar contours are within normal limits . The heart appears mildly enlarged .
    OUTPUT:
    
Low lung volumes with bibasilar opacities . Findings may reflect atelectasis , though pneumonia should also be considered .