Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ , the right chest tube has been placed . However , the tip overlies the lateral right chest wall at the level of the right mid chest , in the region of the right sixth and seventh ribs . It does not appear to extend beyond the chest wall into the pleural space . No pneumothorax is detected . Again seen is opacity at the right lung base with obscuration of the right hemidiaphragm , slightly improved . There is upper zone redistribution and mild diffuse vascular blurring , consistent with CHF . This is also probably slightly improved . There is minimal atelectasis at the left base , slightly improved . No left - sided effusion .
    OUTPUT:
    
1 . New right - sided chest tube does not appear to cross the chest wall . No pneumothorax detected . 2 . Right base opacity is slightly improved . CHF findings and left base atelectasis also slightly improved .