Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . Minimal streaky right basilar opacity likely reflects atelectasis , though developing infection can not be completely excluded . No pleural effusion or pneumothorax is seen . The left lung is clear . No acute osseous abnormalities are noted .
    OUTPUT:
    
Minimal streaky right basilar opacity is likely reflective of atelectasis . Infection , however , can not be completely excluded .