Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild - to - moderate pulmonary edema is new since ___ . No pleural effusion or pneumothorax . The aortic knob is calcified . Moderate cardiomegaly is also new . There are median sternotomy wires .
    OUTPUT:
    
Mild to moderate pulmonary edema is new since ___ .