Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval improvement in the right upper lobe opacity and right pleural effusion . There is little change in the left pleural effusion . The left pigtail catheter has been removed . Interval placement of a right PICC line demonstrates its tip at the cavoatrial junction . There is no pneumothorax .
    OUTPUT:
    
1 . Right PICC line tip is at the cavoatrial junction . 2 . Interval improvement of right upper lobe opacity and right pleural effusion , with interval removal of the left pigtail catheter .