Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph ___ at 15 :43 is submitted .
    OUTPUT:
    
Cardiac and mediastinal contours are stable . Lungs appear well inflated without evidence of focal airspace consolidation to suggest pneumonia . No pleural effusions , pulmonary edema or pneumothorax . Coronary arterial stents remain in place .