Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP chest radiograph . Median sternotomy wires are intact . Mild interstitial edema is unchanged , but there is now a moderate pleural effusion on the right . Moderate left pleural effusion is stable . There is no pneumothorax . The heart remains moderately enlarged .
    OUTPUT:
    
Stable mild interstitial edema but new moderate right pleural effusion .