Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There appears to be interval improvement of the left large pleural effusion ; however , this may be secondary to differences in positioning . Again seen is bibasilar atelectasis . There has been an interval increase in vascular congestion bilaterally . There is no pneumothorax . A right - sided PICC line appears to terminate in the mid SVC . The heart and mediastinal contours are otherwise unremarkable .
    OUTPUT:
    
Interval increase in vascular congestion bilaterally . Slight improvement in the left pleural effusion / hemothorax , although this may be secondary to positioning and technique .