Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mild to moderately enlarged . The mediastinal and hilar contours are unremarkable . Pulmonary vascularity is normal . Lungs are hyperinflated but clear without focal consolidation . No pleural effusion or pneumothorax is detected . No acute osseous abnormality is identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality .