Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is subtle right midlung opacity possibly projecting posteriorly on the lateral view . Elsewhere , the lungs are clear . There is no effusion . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormality identified .
    OUTPUT:
    
Subtle right mid lung potentially superior segment of the right lower lobe opacity . This could represent pneumonia in the proper clinical setting