Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is within normal limits . Median sternotomy wires are again noted as well as prosthetic aortic valve . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .