Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged but unchanged . The mediastinal hilar contours are similar . Pulmonary vasculature is not engorged . Patchy and linear opacities are noted within the lingula and right middle lobe , likely reflective of atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Patchy and linear opacities within the lingula and right middle lobe likely reflective of atelectasis .