Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable and within normal limits . The aorta is minimally calcified . There is mild pulmonary vascular congestion as well as mild pulmonary edema . Of note , more focal opacity at the base of the right lung may could reflect underlying infection or asymmetric edema . No effusions or pneumothorax .
    OUTPUT:
    
Mild pulmonary edema . More focal opacity at the base of the right lung could reflect underlying infection or asymmetric edema .