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 similar study obtained six hours earlier during the same day . The right - sided chest tube remains in unchanged position and terminates in the right apical area . No pneumothorax has developed . The previously identified bilateral basal atelectases remain rather unchanged . Comparison does not demonstrate new infiltrates . No mediastinal shift and no evidence of increase in pleural effusion .
    OUTPUT:
    
Stable chest findings with right chest tube in place , no interval change for the last six hours .