Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there has been interval improvement in edema . There is persistent patchy opacity at the right lung base . Small bilateral pleural effusions are stable to mildly improved . No pneumothorax . Mild cardiomegaly is stable . Pacemaker wires are stable in position .
    OUTPUT:
    
Improvement in pulmonary edema and stable to slightly improved small bilateral pleural effusions . Persistent right lower lobe opacity likely represents pneumonia .