Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right chest tube is present at the right lung base . The appearance is not suggestive of a conventional pigtail catheter . Small area of hazy opacity at the right lung base could reflect a combination of atelectasis and minimal pleural fluid . No gross effusion is identified . Of note , there is a small right apical pneumothorax . On the left , there is minimal pleural fluid and minimal basilar atelectasis . No left apical pneumothorax . Borderline upper zone redistribution , without other evidence of CHF . The cardiomediastinal silhouette is not enlarged . Background COPD again noted .
    OUTPUT:
    
1 . Minimal residual right pleural fluid in the setting of a right lung base chest tube . Small left effusion . 2 . Bibasilar atelectasis , right greater the left . 3 . Small right apical pneumothorax , which is apparently new . ( Subsequent film from ___ at 07 : 19 shows that this is slightly smaller . )