Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate loculated right pleural effusion is unchanged since ___ . Moderate cardiomegaly and severe enlargement of the pulmonary arteries is unchanged . There is improved aeration in the left retrocardiac region , however opacity at the periphery of the left midlung persists . There is no new pulmonary opacity . Vascular congestion is improved . There is no pneumothorax .
    OUTPUT:
    
1 . Unchanged loculated right pleural effusion . 2 . Significantly improved opacification of the left retrocardiac region with persistent opacity at the periphery of the left midlung . 3 . Vascular congestion is improved .