Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided PICC is unchanged compared to the prior study , likely terminating in the right brachiocephalic vein . A left - sided chest tube is unchanged in appearance . There is persistent left pleural fluid with slight improvement in the hazy in the left mid lung opacity . There is a small loculated air within the pleural fluid at the left costophrenic angle . Left basilar atelectasis persists . No pneumothorax seen .
    OUTPUT:
    
1 . Slight interval improvement in the left mid lung airspace opacities . 2 . Persistent left hydro pneumothorax . 3 . A right - sided PICC terminates likely in the distal right brachiocephalic vein .