Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . Lung volumes are normal . There is no focal consolidation , effusion , or pneumothorax . Linear opacities in the right lower lobe likely represent subsegmental atelectasis versus scarring . Heart is enlarged , unchanged from ___ .
    OUTPUT:
    
1 . Right basilar atelectasis . 2 . No evidence of focal consolidation .