Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior study , there is minimal bibasilar atelectasis , which is new . No CHF , focal consolidation or effusion . No pneumothorax detected . The cardiomediastinal silhouette is unchanged . Rounded right paratracheal density is noted , not appreciated on the prior film --? artifact due to confluence of bone and vascular shadows .
    OUTPUT:
    
1 . Minimal bibasilar atelectasis without other evidence of acute pulmonary process . 2 . Rounded right paratracheal density --___ artifact due to overlap of vessel and bone . Attention to this area on followup films is requested .