Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the study of ___ , the right - sided effusion appears to have resolved . The right lung is essentially clear now . However , there is still near - complete opacification of the left hemithorax due to the substantial loculated pleural effusion . There is no pneumothorax . No evidence of pneumonia within regions of well - ventilated right lung . A pigtail catheter is noted at the left lung base , unchanged in position . The left PICC line has changed in position and now crosses over to the right brachiocephalic vein , possibly entering right internal jugular vein .
    OUTPUT:
    
1 . Interval resolution of the right sided pleural effusion . Stable appearance of completely opacified left hemithorax due to substantial loculated pleural effusion . 2 . No definite evidence of pneumonia within areas of well ventilated right lung . 3 . Malpositioned left PICC which now terminates in the right brachiocephalic / entering right IJ .