Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is post right lower lobectomy with elevation of right hemidiaphragm . Mild bibasilar opacities are consistent with atelectasis . There is no pneumothorax or pleural effusion . Cardiomediastinal silhouette is unchanged . Old healed fracture is noted in posterior right sixth rib .
    OUTPUT:
    
Mild bibasilar atelectasis . Patient is post right lower lobectomy .