Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear , without focal consolidation . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unremarkable . The heart size is normal . Pectus excavatum and old left side rib fractures are again noted .
    OUTPUT:
    
No acute cardiopulmonary process .