Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The aorta is mildly tortuous and demonstrates atherosclerotic calcifications , unchanged . The hilar contours are unremarkable . New ill - defined opacity is noted in the right lung base which is concerning for an infectious process . No pleural effusion or pneumothorax is present . The pulmonary vascularity is normal . There are multilevel degenerative changes in the thoracic spine . Old right - sided rib fractures are again noted .
    OUTPUT:
    
Patchy ill - defined opacity in the right lung base concerning for infection .