Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are unchanged , with the heart size within normal limits . Pulmonary vasculature is not engorged . Minimal streaky opacity in the right lower lobe may reflect an area of atelectasis though infection is not completely excluded . No pneumothorax or pleural effusion is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Streaky opacity in the right lower lobe may reflect an area of atelectasis though infection is not completely excluded .