Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable view of the chest moderate left pleural effusion , essentially unchanged since prior exam . Left lung base consolidation is present . No large right pleural effusion is seen . Peripheral right lung base opacity is more conspicuous since prior exam . Moderate cardiomegaly persists and mild interstitial pulmonary edema is relatively similar . Hilar and mediastinal silhouettes are unchanged . Aortic valve calcifications are seen . Multiple surgical clips project over cardiac silhouette compatible with prior CABG . Sternotomy wires appear intact . The mitral valve prosthesis is in place . There is no pneumothorax .
    OUTPUT:
    
1 . In comparison to ___ exam , moderate left pleural effusion , mild interstitial pulmonary edema , and cardiomegaly is unchanged . 2 . Left lung base consolidation , likely collapse or superimposed infection . 3 . Right lung base peripheral opacity more conspicuous since prior exam and may represent infection , infarction or organizing pneumonia .