Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest ___ at 20 :27 are submitted .
    OUTPUT:
    
Interval removal of right internal jugular sheath . Patient is status post median sternotomy with aortic valve replacement . Stable postoperative cardiac and mediastinal contours . Small bilateral effusions with patchy opacity at the left base likely reflect compressive atelectasis . Linear opacities in the left mid lung likely reflect scarring or subsegmental atelectasis . No evidence of pulmonary edema or pneumothorax . Calcification of the descending aorta consistent with atherosclerosis .