Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to ___ chest radiograph , there are no changes noted . There are no consolidations , opacities , masses , pneumothorax , or pleural effusion appreciated . The cardiomediastinal silhouette and hilar silhouettes are normal size . The heart size is normal .
    OUTPUT:
    
1 . No acute cardiopulmonary process .