Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is mildly enlarged . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Minimal atelectasis is demonstrated in the lung bases without focal consolidation . No pleural effusion or pneumothorax is present . No acute osseous abnormality is visualized . No subdiaphragmatic free air is demonstrated .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No subdiaphragmatic free air .