Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation , effusion , or edema . Biapical scarring which is partially calcified is again noted . The cardiomediastinal silhouette is within normal limits . Median sternotomy wires are intact . Atherosclerotic calcifications seen at the aortic arch . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process . ___ , MD