Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low with linear opacities in the lower lungs again seen likely representing atelectasis versus scarring . There is mild interstitial edema which is new from prior exam . No large effusion or pneumothorax is seen . The heart size appears within normal limits . Mediastinal contour is normal . No bony abnormalities are detected .
    OUTPUT:
    
Mild pulmonary edema with basilar atelectasis / scarring .