Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lordotic positioning . Even allowing for this , the cardiomediastinal silhouette appears enlarged , but similar to the prior study . There is diffuse vascular plethora and vascular blurring , consistent with CHF . There is patchy opacity in the right mid and lower zones . A right pleural effusion is again seen , possibly slightly smaller . There is underlying collapse and / or consolidation at the right lung base . There is atelectasis at left lung base and increased retrocardiac density , unchanged . No left pleural effusion . Right PICC line tip overlies distal SVC near cavoatrial junction , unchanged .
    OUTPUT:
    
Cardiomediastinal silhouette is enlarged , but grossly unchanged . CHF with interstitial and possible scattered pulmonary edema , overall similar to the prior study . Small right effusion may be slightly smaller . There is persistent underlying collapse and / or consolidation and probable small right effusion . Increased retrocardiac density consistent with left lower lobe collapse and / or consolidation , essentially unchanged .