Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Mediastinal and hilar contours are unchanged . Lung volumes are low with crowding of bronchovascular structures . Mild upper zone vascular redistribution suggest mild pulmonary vascular congestion . Streaky atelectasis is noted in the lung bases . No focal consolidation , pleural effusion or pneumothorax is present .
    OUTPUT:
    
Low lung volumes with mild pulmonary vascular congestion and bibasilar atelectasis .