Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is mildly enlarged . The aorta is tortuous . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is within normal limits . Minimal atelectasis is noted in the lung bases without focal consolidation . No pleural effusion or pneumothorax is identified . No acute osseous abnormality is visualized . Elevation of the hemidiaphragms is again noted .
    OUTPUT:
    
No acute cardiopulmonary abnormality .