Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate enlargement of cardiac silhouette persists . The mediastinal and hilar contours are unchanged . Previous pattern of mild pulmonary vascular congestion has somewhat improved . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild pulmonary vascular congestion , slightly improved in the interval .