Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable semi upright chest radiograph demonstrates demonstrates increased bibasilar opacities particularly within the upper lobes compatible with worsening pulmonary edema . Patient is status post median sternotomy . The costophrenic angles bilaterally are obscured , likely reflective of small pleural effusions . Infection can not be excluded .
    OUTPUT:
    
Increase patchy bilateral opacities , small pleural effusions , cardiomegaly , most compatible with worsening pulmonary edema .