Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of an endotracheal tube , which is low in position , coursing into the right main stem bronchus . Recommend withdrawal by 4 - 5 cm . A nasogastric tube is seen , distal aspect not appreciated and not clearly coursing below the level of the diaphragm . The cardiac silhouette is enlarged . Left base retrocardiac opacity is seen which could be due to aspiration / atelectasis given development in the interval . There may also be a small left pleural effusion .
    OUTPUT:
    
Right main stem bronchus intubation , as above . Recommend withdrawal by 4 - 5 cm . Left base retrocardiac opacity developed in the interval may be due to atelectasis / aspiration . The above findings were discussed with Dr . ___ at 4 :05 p .m . on ___ via telephone five minutes after discovery of the findings .