Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is borderline enlarged . Mediastinal and hilar contours are unremarkable . Lungs are clear and the pulmonary vasculature is normal . No pleural effusion or pneumothorax is demonstrated . Mild loss of height of a low thoracic vertebral body is unchanged . No free air is seen under the diaphragms .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No free air is seen under the diaphragms .