Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior examination , there has been no relevant interval change . Mild left basilar atelectasis is noted . There is no lobar consolidation , pleural effusion , or pneumothorax . The thoracic aorta is mildly ectatic , unchanged . Cardiac size is within normal limits .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .