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 . Cardiomegaly is unchanged . Basal atelectasis again noted . No large effusion or pneumothorax . No overt signs of edema . Mediastinal contour is unchanged . Bony structures are intact .
    OUTPUT:
    
Stable cardiomegaly , bibasilar atelectasis . Otherwise unremarkable .