Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a small amount of retained enteric contrast in the epigastric region , probably in a residual Nissen pouch . There is a moderate amount of contrast in the transverse colon . The lung volumes are low . Again noted are bibasilar opacities , slightly improved at the left base compared to the prior chest radiograph , in keeping with the patient 's aspiration event . There is no new focal airspace consolidation . No pneumothorax or large pleural effusion is noted . The cardiomediastinal silhouette remains within normal limits .
    OUTPUT:
    
1 . A small amount of retained enteric contrast in the epigastrium , probably in a residual Nissen pouch . Enteric contrast in the transverse colon . 2 . Interval mild improvement of bibasilar opacities , representing the known multifocal aspiration and / or superimposed infection .