Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . Heart size is exaggerated due to the presence of low lung volumes but appears mildly enlarged . Mediastinal and hilar contours are normal . Lungs are clear . No pleural effusion , focal consolidation , or pneumothorax is visualized . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .