Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left IJ dialysis catheter terminates in the right atrium . There is worsening confluent right middle lobe opacification since the prior chest radiograph at 01 :59 . The left lung is clear . Heart size is stable . The mediastinal and hilar contours are stable . The pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . Left IJ catheter appropriate positioning . 2 . Continued worsening of right middle lobe opacification .