Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral images of the chest . The lung volumes are low , similar to prior exam . Chronic pulmonary vascular congestion is seen . No focal consolidation or mass is seen . A small left pleural effusion is suspected . There is no right pleural effusion . No pneumothorax is seen . The cardiomediastinal silhouette is mild to moderately enlarged , unchanged from prior exam .
    OUTPUT:
    
1 . Mild to moderate cardiomegaly , unchanged from prior exam . 2 . Chronic pulmonary vascular congestion .