Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single supine view of the chest . Low lung volumes are noted . There are streaky bibasilar opacities , potentially due to atelectasis . There is crowding of the bronchovascular markings noting that there is also possible superimposed vascular congestion . The cardiac silhouette is enlarged but not significantly changed given differences in positioning and technique . Excreted contrast is seen in the kidneys bilaterally .
    OUTPUT:
    
Low lung volumes . There is crowding of the bronchovascular markings , noting that superimposed vascular congestion is possible . Streaky bibasilar opacities , most likely atelectasis .