Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is hazy opacity in the infrahilar region on the right . Elsewhere , lungs are clear . Cardiomediastinal and hilar contours are within normal limits . There is no pleural effusion or pneumothorax . No evidence of pulmonary edema . Imaged osseous structures and upper abdomen demonstrate no acute abnormality .
    OUTPUT:
    
Hazy opacity at the right lower lung potentially atelectasis noting that infection is not excluded .