Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Cardiomegaly is unchanged . There is hilar congestion with mild interstitial pulmonary edema . No large effusion or pneumothorax is seen . No signs of pneumonia . Mediastinal contour is unchanged . Bony structures are intact .
    OUTPUT:
    
Mild edema , stable cardiomegaly .