Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Minimal streaky opacities at the lung bases likely reflect atelectasis . No focal consolidation , pleural effusion or pneumothorax is visualized . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .