Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are present . Cardiac silhouette size size remains mildly enlarged . The mediastinal and hilar contours are unchanged . Pulmonary vasculature is normal . Lungs are clear . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormality is seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .