Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low bilaterally . Lungs are otherwise clear without evidence of focal consolidation or pulmonary edema . Heart size is normal . Cardiomediastinal and hilar silhouettes and pleural surfaces are normal .
    OUTPUT:
    
Low lung volumes , but no evidence of pneumonia or other significant cardiopulmonary abnormalities .