Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is mildly enlarged but unchanged . Aortic knob calcifications are present . No pulmonary edema , focal consolidation or pleural effusion is present . No pneumothorax is identified . Elevation of the right hemidiaphragm is unchanged . Hypertrophic changes are again noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .