Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph ___ at 10 :36 is submitted .
    OUTPUT:
    
Residual streaky opacity at the right base likely reflects atelectasis or scarring . Lungs are otherwise clear . No large effusions or pneumothoraces . No pulmonary edema . Overall cardiac and mediastinal contours are stable .