Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior examination , there has been a substantial interval decrease in the degree of widespread parenchymal opacities . No lobar consolidation is seen . There is no evidence of pleural effusion or pneumothorax . The heart size is top - normal . The mediastinum is unremarkable appearance . No acute osseous abnormalities are detected .
    OUTPUT:
    
Interval decrease in the degree of widespread bilateral pulmonary opacities . Findings may represent interval improvement of pulmonary edema versus multifocal infection .