Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unchanged with tortuosity of the thoracic aorta again demonstrated . Pulmonary vasculature is normal . Minimal atelectasis is noted in the left lung base . No focal consolidation , pleural effusion or pneumothorax is identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality .