Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post sternal fixation and aortic stent graft , grossly similar in appearance as compared to the prior study , along with atelectasis of the superior segment of the left lower lobe . Prior CTs from ___ demonstrated endoleak . Blunting of the left costophrenic angle may be due to a trace left pleural effusion , appears decreased as compared to the prior study . The right lung is clear . No right pleural effusion is seen . Surgical clips are noted at the right upper-outer hemi thorax .
    OUTPUT:
    
Overall no significant interval change compared to the prior study aside from possible slight decrease in left pleural effusion .