Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is new bilateral hazy alveolar infiltrate involving the upper lobes greater than the lower lobes . The heart is mildly enlarged and is larger than on the prior study . There is a small right effusion . There is no left effusion . The pulmonary vasculature is indistinct .
    OUTPUT:
    
New severe bilateral alveolar infiltrates . Is unclear if this is infectious or is an atypical presentation of pulmonary edema