Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in sitting semi-upright position . Comparison is made with the next preceding first postoperative supine chest examination of ___ . Heart size and sternotomy , unchanged . The previously present right internal jugular approach central venous line has been removed . No pneumothorax has developed . Left - sided chest tube advanced from below remains in position . No evidence of significant pleural effusion or new infiltrates . No increased pulmonary congestion .
    OUTPUT:
    
Satisfactory followup examination , no evidence of pneumothorax .