Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are present . Heart size is moderately enlarged , as seen previously . The aorta remains tortuous . The mediastinal and hilar contours are otherwise similar . Crowding of bronchovascular structures is present with probable mild pulmonary vascular congestion . No focal consolidation , pleural effusion or pneumothorax is seen . Moderate multilevel degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
Low lung volumes with probable mild pulmonary vascular congestion .