Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size appears top normal . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal and the lungs are clear . No pleural effusion or pneumothorax is seen . No acute osseous abnormalities are visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .