Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA lateral images of the chest . The lungs volumes are low . Scattered bilateral linear opacities are stable from prior exam and may reflect scarring or subsegmental atelectasis . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Scattered bilateral linear opacities may reflect scarring or subsegmental atelectasis . No evidence of pneumonia .