Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a heart which is mildly enlarged , unchanged . Lungs are well - aerated without focal consolidation , pleural effusion , or pneumothorax . The visualized upper abdomen is unremarkable . Mild degenerative changes are seen in the spine .
    OUTPUT:
    
No acute cardiopulmonary process .