Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is unchanged , and mildly enlarged . The mediastinal contour is stable . There is mild pulmonary vascular congestion , not significantly changed in the interval . A moderate to large left pleural effusion is also relatively unchanged . No focal consolidation or pneumothorax is identified .
    OUTPUT:
    
Mild pulmonary vascular congestion and moderate to large left pleural effusion , relatively unchanged from the previous exams .