Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are mild bibasilar atelectatic changes , but the lungs are without a focal consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette is normal . Degenerative changes of the right acromioclavicular joint are again noted .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .