Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip in good position . Left PICC line tip not well seen , likely near cavoatrial junction . T AVR . Pulmonary edema is mildly improved . Stable heart size , pulmonary vascularity since prior . Mildly improved bibasilar opacities . Improved pleural effusions . No definite pneumothorax .
    OUTPUT:
    
Interval mild improvement . No pneumothorax .