Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are unremarkable . There is no pulmonary edema . Patchy bibasilar airspace opacities are more pronounced on the right , and are concerning for areas of infection or aspiration . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Patchy bibasilar airspace opacities concerning for pneumonia or aspiration .