Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates approximately 2 .2 cm above the carina , with the head down . Right IJ catheter tip is likely in the mid SVC , unchanged . Right PICC tip has been withdrawn and is now likely at the cavoatrial junction . Lung volumes remain extremely low . Dense bibasilar opacities are unchanged and could be due to atelectasis / effusions or consolidation . Mild pulmonary edema . Cardiomediastinal silhouette is stable .
    OUTPUT:
    
1 . Appropriate placement of lines and tubes . 2 . Persistent extremely low lung volumes and dense bibasilar opacities , likely a combination of pneumonia and atelectasis