Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph ___ at 17 : 12 is submitted .
    OUTPUT:
    
Cardiac and mediastinal contours are stable . Faint patchy opacity at the right lung base could reflect atelectasis , pneumonia , or aspiration . Clinical correlation is advised . No pleural effusions or pneumothorax . No pulmonary edema .