Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes , and there is mild increased vascular congestion compared with the prior study . Mild enlargement of the cardiac silhouette remains , and there is stable widening of the mediastinal structures , most likely from lipomatosis . There is no effusion or pneumothorax .
    OUTPUT:
    
Stable mildly enlarged cardiac silhouette , with mild pulmonary vascular congestion .