Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is borderline enlarged , unchanged . Mediastinal and hilar contours are within normal limits . Pulmonary vasculature is normal . Apart from minimal subsegmental atelectasis at the lung bases , lungs are clear without focal consolidation . No pleural effusion or pneumothorax is identified . No acute osseous abnormalities seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .