Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are clear . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . Extensive aortic calcifications are again seen . No focal consolidations are noted . Median sternotomy wires are intact and well aligned . No pneumothorax or pulmonary edema .
    OUTPUT:
    
No pneumonia or acute cardiopulmonary process .