Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ETT in standard position . The enteric tube traverses the diaphragm into the left upper quadrant wires tip is not seen . Incompletely visualized hemodialysis catheter tip projects image the lower right mediastinum . Vascular stents end - to - end project over in the right medial upper hemithorax . Lung volumes remain low but have slightly improved compared to the prior exam . Residual lower lung worse on the streaky opacities most likely reflect atelectasis . No left pleural effusion . No pneumothorax . No edema . Heart size is normal .
    OUTPUT:
    
Persistent bibasilar atelectasis and lower lung volumes , slightly improved in the interim .