Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette remains moderately enlarged , but unchanged . The mediastinal and hilar contours are within normal limits . There is mild pulmonary vascular congestion and edema . Blunting at the right costophrenic angle is new from the most recent prior study suggesting a small right pleural effusion . No pneumothorax is present . No focal consolidation concerning for pneumonia is identified .
    OUTPUT:
    
1 . Pulmonary vascular congestion / edema and small right pleural effusion suggest acute moderate congestive heart failure . 2 . Stable moderate cardiomegaly .