Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is cardiomegaly , with upper zone redistribution and diffuse vascular blurring , small to moderate left effusion with underlying collapse and / or consolidation , and patchy opacity at the right base , with possible small right effusion . Patchy opacity at the right base has increased slightly compared with the prior film . No pneumothorax detected .
    OUTPUT:
    
1 . CHF with interstitial edema , probably very slightly increased compared with ___ . Slight increase in patchy opacity at the right base . Findings at the bases could all relate to CHF , with effusions and atelectasis , but an associated pneumonic infiltrate would be difficult to exclude . 2 . No pneumothorax detected .