Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates hyperexpanded lungs . There is an persistent increased opacification of the bilateral bases , which likely represents atelectasis or aspiration . Superimposed infection can not be excluded . The cardiomediastinal and hilar contours are unchanged . The endotracheal tube ends 3 .9 cm from the carina . The nasogastric tube courses into the stomach , with the last side port at the GE junction . Note is made of multiple calcified left axillary lymph nodes and degenerative changes at the glenohumeral joints , possibly AVN right humeral head . Calcified plaque is seen at the left carotid bifurcation .
    OUTPUT:
    
1 . Endotracheal tube ends 3 .9 cm from the carina . 2 . Nasogastric tube courses into the stomach , with the last side port at the GE junction , and should be advanced prior to use .