Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and aortic valve replacement . Heart size is moderately enlarged but unchanged . The aorta is tortuous with mild atherosclerotic calcifications noted . No pulmonary edema is demonstrated . Small bilateral pleural effusions are new , with adjacent atelectasis in the lung bases . Moderate multilevel degenerative changes are noted in the thoracic spine . There is no pneumothorax .
    OUTPUT:
    
Small bilateral pleural effusions and bibasilar atelectasis , new in the interval .