Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Bibasilar airspace opacities are concerning for multifocal pneumonia . No pleural effusion or pneumothorax is demonstrated . There is no acute osseous abnormality .
    OUTPUT:
    
Bibasilar airspace opacities concerning for multifocal pneumonia .