Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable chest radiograph is obtained . Mild pulmonary edema and bibasilar atelectasis are unchanged since ___ . No new focal consolidation , effusion , or pneumothorax is present . Cardiac and mediastinal contours are unremarkable .
    OUTPUT:
    
Mild pulmonary edema and bibasilar atelectasis are similar to ___ .