Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Postoperative changes cervical spine . Endotracheal tube tip in good position . Enteric tube tip below diaphragm , not included on the radiograph . Subclavian central line tip not well seen , probably in the low SVC . Improved right suprahilar , left perihilar opacities since prior . Bibasilar opacities , more prominent on the left , likely atelectasis , consider infection , aspiration in the appropriate clinical setting . Tiny bilateral pleural effusions . No pneumothorax .
    OUTPUT:
    
Improved perihilar opacities . Mildly worsened basilar opacities , likely atelectasis , consider infection , aspiration in the appropriate clinical setting .