Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Linear areas of atelectasis / scarring are seen at the bilateral mid to lower lungs . No focal consolidation is seen . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable , given differences in patient position and technique . .
    OUTPUT:
    
No acute cardiopulmonary process .