Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart continues to be top normal in size , and the patient is status post median sternotomy and mitral valve replacement . Healed right - sided rib fractures are noted . A left - sided cardiac pacer has its leads terminating over the right atrium and right ventricle . The lungs are clear of focal consolidation or pneumothorax . There continues to be left pleural thickening , and there is no overt pulmonary edema .
    OUTPUT:
    
No acute cardiopulmonary process .