Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low which accentuates the size of the cardiac silhouette which is borderline enlarged . Mediastinal and hilar contours are normal . Lungs are clear . Pulmonary vasculature is normal . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .