Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the chest radiograph obtained approximately 2 weeks prior , no significant changes are appreciated . There has been no reaccumulation of the prior right pneumothorax . Apical bullae appear unchanged . The lungs are otherwise fully expanded and clear . Cardiomediastinal and hilar silhouettes are normal . Pleural surfaces are normal .
    OUTPUT:
    
No reaccumulation of a right pneumothorax . Unchanged right apical bullae .