Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy . Dual lead left - sided pacer device is stable in position . Bibasilar scarring / atelectasis is seen . No focal consolidation . No pleural effusion or pneumothorax . Cardiac and mediastinal silhouettes are grossly stable . No pulmonary edema is seen .
    OUTPUT:
    
No acute cardiopulmonary process . No pulmonary edema .