Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged , similar to that seen on the prior CT . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is detected . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .