Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild pulmonary vascular congestion with mild associated interstitial edema . Layering pleural fluid is seen on the lateral view , likely bilateral . Airspace opacities in the lower lungs bilaterally likely represent atelectasis , however a superimposed infectious process is not excluded . There is no pneumothorax . A left pectoral dual - chamber pacemaker and its leads project in unchanged location . Moderate cardiomegaly is unchanged .
    OUTPUT:
    
1 . Mild pulmonary vascular congestion with mild associated interstitial edema . 2 . Moderate layering pleural effusions , likely bilateral . 3 . Retrocardiac airspace opacity may represent atelectasis or consolidation , depending upon the clinical circumstances . 4 . Moderate cardiomegaly .