Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . There is mild basal atelectasis in the setting of low lung volumes . No signs of pneumonia or CHF . No effusion or pneumothorax . Cardiomediastinal silhouette is normal and stable . No bony abnormalities .
    OUTPUT:
    
No definite signs of pneumonia . Lung volumes are low .