Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Mild cardiomegaly again noted . There is hilar congestion and probable mild interstitial edema . No large effusion . No signs of pneumonia . No pneumothorax . Bony structures are intact . Mediastinal contour is stable .
    OUTPUT:
    
Mild edema , mild cardiomegaly unchanged .