Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Midline sternotomy wires again noted . There are small bilateral pleural effusions with mild pulmonary edema . No pneumothorax . Heart size is stably enlarged . Mediastinal contours unremarkable . Bony structures are intact .
    OUTPUT:
    
Mild edema with small pleural effusions .