Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are within normal limits . Pulmonary vasculature is normal . Minimal atelectasis is noted in the bases , as seen previously . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .