Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Nasogastric tube has been removed , and a new Dobbhoff tube coils in the stomach . The endotracheal tube has been retracted , and now lies 2 .2 cm above the carina . Right internal jugular vascular sheath again terminates in the upper SVC . There is no significant pneumothorax . Increased right and persistent left lower lobe opacities . Changes of median sternotomy , mediastinal clips , and coronary artery bypass grafting are noted . Prominent cardiomediastinal contour is unchanged . There is continued central venous congestion , mild pulmonary edema , and small bilateral pleural effusions .
    OUTPUT:
    
1 . Dobbhoff tube and endotracheal tubes in standard position . 2 . Mild pulmonary edema . 3 . Increased right and persistent left lower lobe opacities , which may represent atelectasis or pneumonia .