Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . No focal consolidation , pleural effusion or pneumothorax is demonstrated . Minimal right basilar patchy opacity may reflect atelectasis . There are mild multilevel degenerative changes in the thoracic spine . No acute osseous abnormality is identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality .