Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right IJ line is present . The tip now overlies the mid / distal SVC , retracted compared with the most recent prior study . No pneumothorax is detected . Widening of the superior mediastinal silhouette is noted , but in keeping with findings on multiple prior studies . CHF findings and bibasilar atelectasis have improved somewhat compared with the prior film . Increased retrocardiac opacity , consistent with left lower lobe collapse and / or consolidation , remains present . Small left - greater - than - right pleural effusions may be present .
    OUTPUT:
    
Right IJ line has been retracted compared with 1 day earlier , but the tip of the line is in satisfactory position in the mid / distal SVC . No pneumothorax detected . Mediastinal widening is again seen , but is not appreciably changed compared with multiple prior films . Interval improvement in CHF , with mild upper zone redistribution still present . Residual bibasilar atelectasis and left lower lobe collapse or consolidation remains present . Possible small left - greater - than - right effusions .