Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no pneumothorax , effusion , or consolidation . The cardiomediastinal silhouette is within normal limits . Surgical clips project over the mediastinum , as on prior . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process , no pneumothorax .