Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were reviewed . Compared to the prior studies , a recurring moderate right possibly loculated pleural effusion , an unchanged small left - sided pleural effusion , prominent intralobular lines , preservation or reticulation and thickened fissure lines indicate mild - to - moderate pulmonary edema that has increased compared to the prior study . Mild cardiomegaly is unchanged . Bibasilar opacities likley represented atelectasis . No pneumothorax is visualized . Left pectoral pacemaker with leads ending in the right atrium and right ventricle is unchanged in position .
    OUTPUT:
    
Preservation of reticulations and a recurring moderate right , possibly loculated , pleural effusion and progressive interstitial abnormalities could be mild to moderate pulmonary edema .