Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right IJ central line tip at the cavoatrial junction . Right midlung opacity is stable since an earlier today , is new since ___ , may represent pneumonitis . Bibasilar opacities are stable since earlier today , significantly improved since ___ . Heart size , pulmonary vascularity at the upper limits of normal . Trace left pleural effusion , similar . No pneumothorax .
    OUTPUT:
    
Right midlung opacity , likely pneumonitis , stable since earlier today .