Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are relatively low with streaky bibasilar opacities which are likely atelectasis . Superiorly , the lungs are clear . There is no effusion . Cardiomediastinal silhouette is within normal limits . TIPS and cul is again seen within the upper abdomen .
    OUTPUT:
    
Bibasilar opacities most likely atelectasis given low lung volumes , infection is not entirely excluded . Findings are similar compared to priors .