Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph ___ at 17 : 40 is submitted .
    OUTPUT:
    
The right subclavian PICC line is unchanged in position . A portion of a right - sided ventriculoperitoneal shunt is again seen overlying the upper right hemithorax . The heart remains stably enlarged . Lung volumes are low with worsening mild to moderate pulmonary and interstitial edema . No pneumothorax . Calcification of the aorta consistent with atherosclerosis . Multiple surgical clips in the right axilla suggestive of prior lymph node dissection .