Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right basilar opacity has mildly improved since ___ at 04 :54 , . There is small right pleural effusion , which has improved since ___ . Status post left pneumonectomy , with shift of mediastinal structures to the left . Endotracheal tube tip 3 cm above carina . Enteric tube tip in the proximal to mid stomach . PICC line tip near cavoatrial junction . Mild interstitial prominence has improved , suggesting improving edema . . No pneumothorax .
    OUTPUT:
    
Interval mild improvement of right basilar opacity .