Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is rotated which somewhat limits evaluation . The patient is status post median sternotomy and aortic valve replacement . Heart size is moderately enlarged but unchanged . The aorta is tortuous and calcified . There is mild interstitial pulmonary edema , relatively unchanged . At least small bilateral pleural effusions are present . Bibasilar airspace opacities may reflect compressive atelectasis . There is no pneumothorax . Degenerative changes are noted in both glenohumeral and acromioclavicular joints with narrowed acromial humeral intervals suggestive of underlying rotator cuff disease . There is evidence of prior vertebroplasty at the thoracolumbar junction .
    OUTPUT:
    
Mild pulmonary edema and small bilateral pleural effusions , similar compared to the prior exam . Persistent bibasilar airspace opacities could reflect compressive atelectasis but infection or aspiration can not be excluded .