Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Mild cardiomegaly with left ventricular predominance is re - demonstrated . Mediastinal and hilar contours are unchanged with prominence of the hila again noted bilaterally . The pulmonary vasculature is not engorged . Patchy opacities in the lung bases likely reflect areas of atelectasis . No pleural effusion or pneumothorax is seen . Moderate multilevel degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
Low lung volumes with probable bibasilar atelectasis .