Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is no focal consolidation , effusion or pneumothorax . Subtle ground - glass opacities seen within the lungs on the frontal projection raising potential concern for mild edema . Thoracic aorta is moderately calcified . Heart size is within normal limits . Mediastinal contours unremarkable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Possible mild edema .