Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Comparison is also made with same date CT abdomen and pelvis . There is mild bibasilar atelectasis . Coarsened reticular markings could reflect chronic interstitial disease . The possibility of mild pulmonary interstitial edema is not excluded . No large effusion or pneumothorax . The heart and mediastinal contour is stable . Bony structures are intact .
    OUTPUT:
    
Bibasilar atelectasis , mild interstitial coarsening , which could represent interstitial lung disease or possibly mild interstitial edema .