Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the previous radiograph , there are no relevant changes . Cervical hardware is intact . Pleural and parenchymal scars in the left are stable in appearance . Heart appears normal in size and cardiomediastinal contours are unremarkable . Lungs are clear . No pleural effusions and no pneumothorax .
    OUTPUT:
    
No significant changes compared to the PA and lateral study from ___ .