Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Minimal patchy right basilar opacity is noted . The left lung is clear . Previously demonstrated nodule seen on CT is not clearly visualized on the chest radiograph . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Minimal patchy right basilar opacity which may reflect atelectasis though infection is not completely excluded .