Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged , unchanged . The aorta is calcified . Pulmonary vascularity is not engorged . There are ill - defined opacities within both lung bases concerning for infection . There is no pleural effusion or pneumothorax . No acute osseous abnormality is seen .
    OUTPUT:
    
Ill - defined bibasilar opacities , more so on the right , which is concerning for infectious process .