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 bibasilar atelectasis and bronchovascular crowding . Low no large effusion or pneumothorax . Note convincing signs of congestion or edema . Heart appears mildly enlarged , unchanged , though not fully assessed . Mediastinal contours unremarkable . Bony structures appear intact .
    OUTPUT:
    
Bibasal opacities most compatible with atelectasis and bronchovascular crowding . Mild cardiomegaly appear stable .