Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Supine portable AP view of the chest provided . The tip of the endotracheal tube resides 1 .2 cm above the carina . Retraction by 1 to 2 cm is advised for more optimal positioning . The NG tube is seen with its tip just beyond the GE junction and advancement would be recommended for more optimal positioning . There is subtle perihilar opacity , which could reflect aspiration or mild congestion . No supine evidence for effusion or pneumothorax . The heart size appears within normal limits . Bony structures appear intact .
    OUTPUT:
    
Low - lying endotracheal tube for which retraction by 1 to 2 cm is advised . NG tube should be advanced for more optimal positioning . Perihilar opacity which could reflect mild edema or aspiration in the right clinical setting .