Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . The mediastinal contours are unremarkable . The pulmonary vasculature is normal . Right basilar and infrahilar patchy opacity is new in the interval , concerning for pneumonia . Left lung is clear . No pleural effusion or pneumothorax is present . No acute osseous abnormality is detected .
    OUTPUT:
    
Patchy opacity within the right lung base and infrahilar region concerning for pneumonia .