Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest , PA and lateral . Findings the lungs are clear . The hilar and mediastinal contours are normal . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal . Median sternotomy cerclage wires intact .
    OUTPUT:
    
No acute cardiopulmonary process .