Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . Lungs are clear . No pleural effusion or pneumothorax is visualized . Elevation of the right hemidiaphragm is chronic . Round density projecting over the left scapula again is redemonstrated , and may represent a loose body .
    OUTPUT:
    
No acute cardiopulmonary abnormality .