Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The nasogastric tube can be traced to the level of the mid esophagus . The left PICC line terminates at the superior cavoatrial junction . Sternotomy wires are intact and aligned . Mild pulmonary edema and a small left pleural effusion are unchanged . The heart and mediastinum are within normal limits despite the projection .
    OUTPUT:
    
NG tube can be traced to the level of the mid esophagus . A repeat well positioned PA radiograph is suggested if the exact location of the tip is in question . Stable mild pulmonary edema and small left pleural effusion .