Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains moderately enlarged but unchanged . The aortic knob is diffusely calcified . Pulmonary vascularity is not engorged . No focal consolidation , pleural effusion or pneumothorax is present . There are mild degenerative changes within the thoracic spine . Surgical clip is seen within the upper abdomen on the lateral view .
    OUTPUT:
    
No acute cardiopulmonary abnormality .