Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . The aorta is calcified at the knob . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is not engorged . Minimal atelectasis is noted in the left lung base . No focal consolidation , pleural effusion or pneumothorax is present .
    OUTPUT:
    
No acute cardiopulmonary abnormality .