Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is rotated to the left . Lung volumes are low . There are bibasilar opacities which could be secondary to atelectasis in this setting . Cardiomediastinal silhouette is grossly unchanged . S - shaped thoracolumbar scoliosis is again noted .
    OUTPUT:
    
Lower lung volumes with secondary bibasilar opacities which are likely atelectasis . No definite acute cardiopulmonary process .