Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Left - sided pacemaker device with leads terminating in the right atrium and right right ventricle is again noted . A right - sided Port - A - Cath is present with tip terminating in the SVC . Heart size is borderline enlarged . Aortic knob is calcified . There is no pulmonary edema demonstrated . Opacification of the left lower lobe appears improved in the interval . Small bilateral pleural effusions however are new compared to the prior exam . No pneumothorax is demonstrated . Biapical pleural thickening or scarring is present . Cholecystectomy clips are noted in the right upper quadrant of the abdomen .
    OUTPUT:
    
New small bilateral pleural effusions . Interval improvement in aeration of the left lower lobe likely reflecting improving atelectasis .