Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low with mild bibasilar atelectasis . Mild cardiomegaly is worse since ___ . The mediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . There could be mild early pulmonary edema .
    OUTPUT:
    
Mild cardiomegaly is worse since ___ . There may be mild early pulmonary edema .