Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs appear clear with normal lung volumes . No evidence of pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . No hilar or vasculature abnormalities are identified . Lateral radiographs reveal patient is status post vertebroplasty .
    OUTPUT:
    
1 . Post vertebroplasty . Otherwise , normal chest radiograph