Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 09 :02 is submitted .
    OUTPUT:
    
Left internal jugular central line is unchanged in position . Overall cardiac and mediastinal contours are stable . Low lung volumes . No focal consolidation is seen to suggest pneumonia . No large effusions . No pneumothorax . No evidence of pulmonary edema .