Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A small right pleural effusion has increased in size . Severe cardiomegaly , unchanged . Pulmonary vascular congestion with an enlarged main pulmonary artery , better seen on prior CT . No pneumothorax is identified . No other interval changes are present .
    OUTPUT:
    
1 . Interval increase in small right pleural effusion . Stable cardiomegaly . Pulmonary vascular congestion . 2 . Enlarged main pulmonary artery , better assessed on prior CT .