Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , with bibasilar hazy opacities , right greater than left , possibly due to the atelectasis , however underlying pneumonia can not be excluded . The heart size is unchanged , and the pulmonary arteries remain prominent . There is no pneumothorax or overt pulmonary edema . No large pleural effusion is identified . There is a healed left clavicle fracture .
    OUTPUT:
    
Bibasilar hazy opacities , right greater than left , possibly due to atelectasis given low lung volumes , however underlying infection can not be excluded in the appropriate clinical setting .