Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two portable AP supine and upright chest radiographs were obtained . An endotracheal tube tip remains 4 .5 cm above the carina . The tip of an enteric catheter is not clearly seen . Right basilar opacities have partially cleared ; the right hemidiaphragm is now more clearly seen . Pleural catheters are in unchanged positions . Small effusions have nearly resolved . No pneumothorax is present . A left - sided PICC line ends at the brachiocephalic / SVC junction .
    OUTPUT:
    
Improved aeration of the right base .