Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is stable . Severe global pulmonary opacification has worsened considerably over 9 hr . Transvenous right atrial and right ventricular pacer leads follow their expected courses , unchanged , continuous from the left pectoral generator . Bilateral pleural effusions are trace .
    OUTPUT:
    
Moderate pulmonary edema in the setting of only mild cardiomegaly raises the possibility that this is noncardiogenic edema .