Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly lower . Evaluation is also limited secondary to patient 's thoracic scoliosis . Streaky bibasilar opacities are noted which are likely secondary to atelectasis . The cardiac silhouette is unchanged . No acute osseous abnormalities .
    OUTPUT:
    
Lower lung volumes . Bibasilar opacities are likely atelectasis .