Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild pulmonary vascular congestion is unchanged . There is stable appearance of the cardiomediastinal silhouette . The small bilateral pleural effusions are present . No new discrete local infiltrate can be identified . Unchanged appearance of aortic valve replacement and tricuspid valve annuloplasty . No pneumothorax .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Unchanged mild pulmonary vascular congestion and stable mild cardiomegaly .