Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right PICC line has been withdrawn , and now terminates at the level of the mid to distal right subclavian vein . A left pectoral pacemaker partially obscures the left mid lung . A new focal opacity at the left lung base may be due to atelectasis or aspiration . There is no pneumothorax .
    OUTPUT:
    
Right PICC line now ends in mid to distal right subclavian vein . New focal left basilar atelectasis or aspiration .