Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal contours are unremarkable . Fullness of the right hilar region with linear opacities in the right lung base is compatible with known right hilar mass with resultant atelectasis . Left lung remains grossly clear . No pleural effusion or pneumothorax is seen . The pulmonary vasculature is normal .
    OUTPUT:
    
No significant interval change from prior with unchanged right hilar mass with right basilar atelectasis .