Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Surgical hardware is seen in the cervical spine and right shoulder . A right IJ central venous catheter is again seen with its tip in the region of the low SVC . The lungs are clear bilaterally . There is no pneumothorax . Heart size is mildly enlarged and stable . Mediastinal contour is unremarkable . The bony structures appear intact . Scoliosis partially visualized in the upper lumbar spine .
    OUTPUT:
    
No acute findings . Right IJ central venous catheter tip in the low SVC .