Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 08 : 17 is submitted .
    OUTPUT:
    
The left subclavian PICC line is unchanged in position with its tip in the distal SVC . Lung volumes are slightly lower but no focal airspace consolidation is seen to suggest pneumonia . No pleural effusions , pulmonary edema or pneumothorax . Overall cardiac and mediastinal contours are stable .