Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Study is slightly limited by patient rotation . Moderate enlargement of cardiac silhouette is re - demonstrated . Mediastinal and hilar contours are likely unchanged . Previous pattern of mild pulmonary vascular congestion appears mildly improved with no pulmonary edema is present . Patchy opacities in the lung bases persists , likely atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . Moderate multilevel degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
Previous pattern of mild pulmonary vascular congestion appears improved . Mild bibasilar atelectasis .