Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 18 : 20 is submitted .
    OUTPUT:
    
The left PICC line has its tip in the proximal SVC . There continues to be bilateral interstitial prominence and patchy opacity at the left base . When compared to prior studies dating back to ___ , the interstitial abnormality appears somewhat more prominent which likely reflects a component of superimposed interstitial edema . The expansile lytic lesion of the left lateral fourth anterior rib is again seen . Overall cardiac and mediastinal contours remain stable with the heart being enlarged . No pneumothorax is appreciated . Spinal hardware is incompletely visualized overlying the lower thoracic spine .