Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the most recent prior radiograph , there are new bibasilar opacities which could represent atelectasis , aspiration or consolidation . There are low lung volumes , which accentuates the cardiomediastinal silhouette . There is blunting of the left costophrenic angle which may be related to small pleural effusion . No pneumothorax is present . A dense round opacity in the left upper abdomen could be barium if the patient had a previous barium swallow ; however , none is documented our system . A drain is seen in the left upper abdomen .
    OUTPUT:
    
New bibasilar opacities could be atelectasis , aspiration or pneumonia . Findings discussed with Dr . ___ by Dr . ___ at 11 :26 a .m . on ___ , 5 minutes after discovery .