Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant interval change since the prior study . Patient is status post median sternotomy . Single lead left - sided AICD is stable in position , with lead extending to the expected position of the right ventricle . Right paratracheal opacity without mass effect on the trachea is stable . Prominence of the perihilar vasculature is stable .
    OUTPUT:
    
No significant interval change .