Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy with chain sutures noted in the right upper lung field and right paramediastinal clips . Heart size remains mildly enlarged . Central venous catheter bridging from an inferior approach courses through and inferior vena cava stent and terminates in the region of the low SVC / proximal right atrium . Mild interstitial pulmonary edema is similar compared to the prior study . Small bilateral pleural effusions , larger on the right are without significant interval change . Scarring is noted within the right upper lung field . No focal consolidation is present . There is no pneumothorax . No acute osseous abnormalities detected .
    OUTPUT:
    
Mild interstitial pulmonary edema and small bilateral pleural effusions . Postsurgical changes in the right upper lung field .