Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No prior . Subtle opacity identified in the right lung laterally . The lungs are otherwise clear without effusion or pneumothorax . Cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Subtle opacity in the right mid lung laterally , potentially atelectasis . Repeat exam with better inspiratory effort on the frontal exam can be performed to clarify , as infection is not completely excluded .