Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to most recent prior exam , there has been little interval change . Multifocal parenchymal opacities persist . Biapical scarring is seen . No new focal consolidation or pneumothorax is detected . Blunting of the right costophrenic angle on frontal view may be secondary to pleural thickening , but small pleural effusion can not be excluded . Heart and mediastinal contours are stable and within normal limits . Surgical clips project over the right upper quadrant , possibly reflecting prior cholecystectomy .
    OUTPUT:
    
No acute change .