Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of the cardiac silhouette has slightly increased in the interval . The mediastinal contours are unremarkable . Mild pulmonary vascular congestion is new from the prior study . There is no focal consolidation , pleural effusion or pneumothorax . No acute osseous abnormalities seen .
    OUTPUT:
    
Mild cardiomegaly , increased from the previous radiograph , with interval development of mild pulmonary vascular congestion .