Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 23 : 12 is submitted .
    OUTPUT:
    
Overall cardiac and mediastinal contours are stable . The lungs appear well inflated without evidence of focal airspace consolidation , pleural effusions or pneumothorax . No pulmonary edema . No free intraperitoneal air . No pneumothorax .