Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is accentuated as a result of low lung volumes , appearing borderline enlarged . Aorta is unfolded . Mild pulmonary vascular congestion is present along with a small left pleural effusion . Patchy opacities in the lung bases may reflect areas of atelectasis though infection or aspiration can not be excluded . No pneumothorax is present . Degenerative changes are noted at the thoracolumbar junction .
    OUTPUT:
    
Low lung volumes with mild pulmonary vascular congestion and small left pleural effusion . Bibasilar airspace opacities may reflect atelectasis but infection or aspiration is not excluded .