Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from ___ . Since prior , there has been interval development of bilateral alveolar opacities with central distribution , somewhat sparing the periphery . There is no effusion . Cardiac silhouette is enlarged but stable in configuration . Atherosclerotic calcification is noted in the aorta . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
New bilateral parenchymal opacities which may represent pulmonary edema . The possibility of infection should be correlated clinically . Followup to resolution is suggested after treatment .