Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is not engorged . Minimal atelectasis is noted at the lung bases without focal consolidation . No pleural effusion or pneumothorax is identified . Remote left - sided rib fractures are visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .