Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are very little changes in the chest since prior radiograph from ___ . Parenchymal scarring in the right upper lung is unchanged . There are no new lung opacities of concern . Bilateral hilar contours are normal . Mediastinal and heart size are normal . No pleural abnormality .
    OUTPUT:
    
No acute cardiopulmonary process .