Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is not engorged . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . Mild degenerative changes are seen in the imaged thoracic spine . No displaced fractures are visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .