Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Widespread bilateral alveolar opacities with a central predominance are new compared to the prior chest x-ray , and are accompanied by scattered septal lines in the lung periphery . Cardiac silhouette is partially obscured by the alveolar opacities but is likely slightly increased in size compared to the prior radiograph even allowing for differences in technical factors between the exams . Azygous vein is slightly distended .
    OUTPUT:
    
Widespread bilateral alveolar opacities and septal thickening , most likely due to pulmonary edema . Correlative cardiac echo may be helpful to assess for a potential cardiac etiology given the patient 's history of recent C - section . Amniotic fluid embolism , massive aspiration and widespread pulmonary infection are additional diagnostic considerations for the diffuse pulmonary opacities .