Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Streaky opacities at the right base are unchanged , most consistent with chronic atelectasis . The lungs are otherwise clear without consolidation or edema . There is no pleural effusion or pneumothorax . Again noted is an azygous lobe . The mediastinal contours are normal . The heart size is mildly enlarged , and grossly unchanged from the prior exam .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Stable mild cardiomegaly .