Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . This accentuates the size of the cardiac silhouette which is likely top normal . Mediastinal and hilar contours are unremarkable . Lungs are clear . No pleural effusion or pneumothorax is seen . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary process .