Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild pulmonary vascular congestion , though no overt interstitial edema . No confluent consolidation is identified . There is mild elevation of the left hemidiaphragm and a small left pleural effusion . Mediastinal and hilar contours are within normal limits . Moderate cardiomegaly is unchanged . A pacemaker generator and leads are in unchanged expected position .
    OUTPUT:
    
1 . Mild pulmonary vascular congestion without overt interstitial edema . Small left pleural effusion . 2 . Unchanged moderate cardiomegaly