Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Mediastinal and hilar contours are within normal limits . Pulmonary vasculature is normal . Lungs are mildly hyperinflated but clear . No pleural effusion or pneumothorax is seen . Patient is status post left mastectomy with multiple clips in the left axilla compatible with prior lymph node dissection . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .