Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes cause bronchovascular crowding . There is no focal consolidation , pleural effusion , pulmonary edema , or pneumothorax . Minimal linear bibasilar atelectasis is present , slightly improved from earlier radiograph from the same date Heart is upper limits of normal in size and accompanied by pulmonary vascular congestion .
    OUTPUT:
    
Pulmonary vascular congestion .