Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low with left basilar atelectasis and a probable left effusion . The patient is rotated which limits assessment . A left - sided PICC now terminates in the proximal to mid SVC , the tip is difficult to visualize as it overlaps with 2 transvenous pacemaker wires . No pneumothorax seen .
    OUTPUT:
    
Limited assessment of the lung parenchyma appears grossly unchanged compared to the prior study . A left - sided PICC terminates in the proximal to mid SVC , difficult to visualize .