Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac and mediastinal silhouettes are stable . Left - sided AICD is stable in position . There is persistent chronic blunting of the right costophrenic angle . The lungs are clear . No pulmonary edema is seen . There is no pneumothorax . There has been no significant interval change since the prior study .
    OUTPUT:
    
No significant interval change .