Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: NG tube is difficult to visualize ; however , appears to be coursing below the diaphragm likely within the stomach . The patient is status post median sternotomy . There is no focal consolidation , pleural effusion , or pneumothorax . The cardiac size appears enlarged , but unchanged from the prior exam . Osseous structures are intact .
    OUTPUT:
    
NG tube tip likely within the stomach .