Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates interval increase in diffuse bilateral pulmonary opacities , consistent with worsening pulmonary edema . Small bilateral pleural effusions are present . Cardiomediastinal contours are unchanged . No pneumothorax . An old posterior left rib fracture is present .
    OUTPUT:
    
Worsening pulmonary edema .