Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . The heart is top normal in size . No focal consolidation , large effusion or pneumothorax is seen . There is no overt edema though mild interstitial edema is difficult to exclude . Mediastinal contour stable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Top normal heart size , possible mild interstitial edema . No pneumonia or free air .