Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear but no evidence of consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette remains at top normal and stable . Mild degenerative changes of the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process . These findings were discussed by Dr . ___ with Dr . ___ ___ telephone at 4 :35 p .m . on ___ .