Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are within normal limits . The granular appearing opacity in the right mid lung is less conspicuous than on the prior study but persists . A atelectasis in the lingula is also unchanged . No pleural effusion or pneumothorax seen . The cardiomediastinal contour is unchanged compared to the prior study . The heart is not enlarged . Air filled dilated loops of bowel in the left upper quadrant are unchanged in appearance when compared to the prior study .
    OUTPUT:
    
No significant interval change when compared to the prior study .