Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No pneumothorax . The lungs are well expanded without consolidation . The lung mass obscuring the para-aortic line is again seen and unchanged . There is mild left lower lobe atelectasis that has improved from prior . The hila and pulmonary vasculature are normal . No pleural abnormalities . The cardiomediastinal silhouette is normal . No fractures .
    OUTPUT:
    
1 . No pneumothorax . 2 . Unchanged left lung mass obscuring para-aortic line .