Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation , pleural effusion , pulmonary edema , or pneumothorax . Mild bibasilar atelectasis is noted . The cardiomediastinal silhouette is stable in this patient status post previous median sternotomy and CABG . Moderate acromioclavicular degenerative changes bilaterally are stable prior studies .
    OUTPUT:
    
No acute cardiopulmonary process .