Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The heart size is borderline enlarged . Mediastinal and hilar contours are unchanged . Pulmonary vascularity is not engorged . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . There is no free air under the diaphragms .
    OUTPUT:
    
No free air under the diaphragms . Low lung volumes with no acute cardiopulmonary abnormality .