Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP semi-upright view of the chest was reviewed and compared to the prior study . The right - sided Port - A - Cath and right PICC line both end in the upper superior vena cava . Median sternotomy wires are intact and aligned . Retrocardiac atelectasis is unchanged and there are no new focal opacities . There is possible elevation of the left hemidiaphragm . There is no pulmonary edema , large pleural effusion or pneumothorax . Stable cardiac and mediastinal contours .
    OUTPUT:
    
No new areas of opacity or findings concerning for infection . Unchanged retrocardiac atelectasis .