Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is mild vascular congestion and mild bibasilar subsegmental atelectasis . There is no pneumothorax . The heart and mediastinum are magnified by the projection . Spinal degenerative changes are stable .
    OUTPUT:
    
Mild pulmonary vascular congestion with mild bibasilar subsegmental atelectasis .