Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are relatively low . The lungs are clear without focal consolidation , effusion , or edema . The cardiomediastinal silhouette is within normal limits for technique and low lung volumes . No acute osseous abnormalities . Hypertrophic changes are noted in the spine .
    OUTPUT:
    
No acute cardiopulmonary process . ___ , MD