Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is diffuse emphysema . The lungs are well expanded and clear . There is no focal consolidation , effusion , or pneumothorax . Dual chamber pacing and defibrillator leads project over unchanged positions . Median sternotomy wires are intact . Chain suture at the right lung apex and right fifth rib changes are stable .
    OUTPUT:
    
No acute cardiopulmonary process .